21407490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:158

約数の個数: 160

約数和(自身を含む): 65862720

約数和(自身を除く): 44455230

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 81, 90, 95, 107, 114, 117, 130, 135, 162, 171, 190, 195, 214, 234, 247, 270, 285, 321, 342, 351, 390, 405, 494, 513, 535, 570, 585, 642, 702, 741, 810, 855, 963, 1026, 1053, 1070, 1170, 1235, 1391, 1482, 1539, 1605, 1710, 1755, 1926, 2033, 2106, 2223, 2470, 2565, 2782, 2889, 3078, 3210, 3510, 3705, 4066, 4173, 4446, 4815, 5130, 5265, 5778, 6099, 6669, 6955, 7410, 7695, 8346, 8667, 9630, 10165, 10530, 11115, 12198, 12519, 13338, 13910, 14445, 15390, 17334, 18297, 20007, 20330, 20865, 22230, 25038, 26429, 28890, 30495, 33345, 36594, 37557, 40014, 41730, 43335, 52858, 54891, 60990, 62595, 66690, 75114, 79287, 86670, 91485, 100035, 109782, 112671, 125190, 132145, 158574, 164673, 182970, 187785, 200070, 225342, 237861, 264290, 274455, 329346, 375570, 396435, 475722, 548910, 563355, 713583, 792870, 823365, 1126710, 1189305, 1427166, 1646730, 2140749, 2378610, 3567915, 4281498, 7135830, 10703745, 21407490]

約数ペア:

[(1, 21407490), (2, 10703745), (3, 7135830), (5, 4281498), (6, 3567915), (9, 2378610), (10, 2140749), (13, 1646730), (15, 1427166), (18, 1189305), (19, 1126710), (26, 823365), (27, 792870), (30, 713583), (38, 563355), (39, 548910), (45, 475722), (54, 396435), (57, 375570), (65, 329346), (78, 274455), (81, 264290), (90, 237861), (95, 225342), (107, 200070), (114, 187785), (117, 182970), (130, 164673), (135, 158574), (162, 132145), (171, 125190), (190, 112671), (195, 109782), (214, 100035), (234, 91485), (247, 86670), (270, 79287), (285, 75114), (321, 66690), (342, 62595), (351, 60990), (390, 54891), (405, 52858), (494, 43335), (513, 41730), (535, 40014), (570, 37557), (585, 36594), (642, 33345), (702, 30495), (741, 28890), (810, 26429), (855, 25038), (963, 22230), (1026, 20865), (1053, 20330), (1070, 20007), (1170, 18297), (1235, 17334), (1391, 15390), (1482, 14445), (1539, 13910), (1605, 13338), (1710, 12519), (1755, 12198), (1926, 11115), (2033, 10530), (2106, 10165), (2223, 9630), (2470, 8667), (2565, 8346), (2782, 7695), (2889, 7410), (3078, 6955), (3210, 6669), (3510, 6099), (3705, 5778), (4066, 5265), (4173, 5130), (4446, 4815)]