21000852474

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1441

約数の個数: 192

約数和(自身を含む): 52907323392

約数和(自身を除く): 31906470918

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 41, 42, 43, 49, 62, 82, 86, 93, 98, 123, 129, 147, 186, 217, 246, 258, 287, 294, 301, 434, 574, 602, 651, 861, 903, 1271, 1302, 1307, 1333, 1519, 1722, 1763, 1806, 2009, 2107, 2542, 2614, 2666, 3038, 3526, 3813, 3921, 3999, 4018, 4214, 4557, 5289, 6027, 6321, 7626, 7842, 7998, 8897, 9114, 9149, 9331, 10578, 12054, 12341, 12642, 17794, 18298, 18662, 24682, 26691, 27447, 27993, 37023, 40517, 53382, 53587, 54653, 54894, 55986, 56201, 62279, 64043, 65317, 74046, 81034, 86387, 107174, 109306, 112402, 121551, 124558, 128086, 130634, 160761, 163959, 168603, 172774, 186837, 192129, 195951, 243102, 259161, 283619, 321522, 327918, 337206, 373674, 375109, 382571, 384258, 391902, 393407, 518322, 567238, 750218, 765142, 786814, 850857, 1125327, 1147713, 1180221, 1661197, 1701714, 1742231, 1985333, 2250654, 2295426, 2304241, 2360442, 2625763, 2677997, 2753849, 3322394, 3484462, 3970666, 4608482, 4983591, 5226693, 5251526, 5355994, 5507698, 5955999, 6912723, 7877289, 8033991, 8261547, 9967182, 10453386, 11628379, 11911998, 12195617, 13825446, 15754578, 16067982, 16129687, 16523094, 23256758, 24391234, 32259374, 34885137, 36586851, 48389061, 69770274, 71431471, 73173702, 81398653, 85369319, 96778122, 112907809, 142862942, 162797306, 170738638, 214294413, 225815618, 244195959, 256107957, 338723427, 428588826, 488391918, 500020297, 512215914, 677446854, 1000040594, 1500060891, 3000121782, 3500142079, 7000284158, 10500426237, 21000852474]

約数ペア:

[(1, 21000852474), (2, 10500426237), (3, 7000284158), (6, 3500142079), (7, 3000121782), (14, 1500060891), (21, 1000040594), (31, 677446854), (41, 512215914), (42, 500020297), (43, 488391918), (49, 428588826), (62, 338723427), (82, 256107957), (86, 244195959), (93, 225815618), (98, 214294413), (123, 170738638), (129, 162797306), (147, 142862942), (186, 112907809), (217, 96778122), (246, 85369319), (258, 81398653), (287, 73173702), (294, 71431471), (301, 69770274), (434, 48389061), (574, 36586851), (602, 34885137), (651, 32259374), (861, 24391234), (903, 23256758), (1271, 16523094), (1302, 16129687), (1307, 16067982), (1333, 15754578), (1519, 13825446), (1722, 12195617), (1763, 11911998), (1806, 11628379), (2009, 10453386), (2107, 9967182), (2542, 8261547), (2614, 8033991), (2666, 7877289), (3038, 6912723), (3526, 5955999), (3813, 5507698), (3921, 5355994), (3999, 5251526), (4018, 5226693), (4214, 4983591), (4557, 4608482), (5289, 3970666), (6027, 3484462), (6321, 3322394), (7626, 2753849), (7842, 2677997), (7998, 2625763), (8897, 2360442), (9114, 2304241), (9149, 2295426), (9331, 2250654), (10578, 1985333), (12054, 1742231), (12341, 1701714), (12642, 1661197), (17794, 1180221), (18298, 1147713), (18662, 1125327), (24682, 850857), (26691, 786814), (27447, 765142), (27993, 750218), (37023, 567238), (40517, 518322), (53382, 393407), (53587, 391902), (54653, 384258), (54894, 382571), (55986, 375109), (56201, 373674), (62279, 337206), (64043, 327918), (65317, 321522), (74046, 283619), (81034, 259161), (86387, 243102), (107174, 195951), (109306, 192129), (112402, 186837), (121551, 172774), (124558, 168603), (128086, 163959), (130634, 160761)]