21000674288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:687

約数の個数: 160

約数和(自身を含む): 46774506240

約数和(自身を除く): 25773831952

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 59, 82, 88, 107, 118, 164, 176, 214, 236, 328, 428, 451, 461, 472, 649, 656, 856, 902, 922, 944, 1177, 1298, 1712, 1804, 1844, 2354, 2419, 2596, 3608, 3688, 4387, 4708, 4838, 5071, 5192, 6313, 7216, 7376, 8774, 9416, 9676, 10142, 10384, 12626, 17548, 18832, 18901, 19352, 20284, 25252, 26609, 27199, 35096, 37802, 38704, 40568, 48257, 49327, 50504, 53218, 54398, 69443, 70192, 75604, 81136, 96514, 98654, 101008, 106436, 108796, 138886, 151208, 193028, 197308, 207911, 212872, 217592, 258833, 277772, 299189, 302416, 386056, 394616, 415822, 425744, 435184, 517666, 542597, 555544, 598378, 772112, 789232, 831644, 1035332, 1085194, 1111088, 1115159, 1196756, 1663288, 2022407, 2070664, 2170388, 2230318, 2393512, 2847163, 2910293, 3326576, 4044814, 4141328, 4340776, 4460636, 4787024, 5694326, 5820586, 8089628, 8681552, 8921272, 11388652, 11641172, 12266749, 16179256, 17842544, 22246477, 22777304, 23282344, 24533498, 32013223, 32358512, 44492954, 45554608, 46564688, 49066996, 64026446, 88985908, 98133992, 119322013, 128052892, 177971816, 196267984, 238644026, 256105784, 355943632, 477288052, 512211568, 954576104, 1312542143, 1909152208, 2625084286, 5250168572, 10500337144, 21000674288]

約数ペア:

[(1, 21000674288), (2, 10500337144), (4, 5250168572), (8, 2625084286), (11, 1909152208), (16, 1312542143), (22, 954576104), (41, 512211568), (44, 477288052), (59, 355943632), (82, 256105784), (88, 238644026), (107, 196267984), (118, 177971816), (164, 128052892), (176, 119322013), (214, 98133992), (236, 88985908), (328, 64026446), (428, 49066996), (451, 46564688), (461, 45554608), (472, 44492954), (649, 32358512), (656, 32013223), (856, 24533498), (902, 23282344), (922, 22777304), (944, 22246477), (1177, 17842544), (1298, 16179256), (1712, 12266749), (1804, 11641172), (1844, 11388652), (2354, 8921272), (2419, 8681552), (2596, 8089628), (3608, 5820586), (3688, 5694326), (4387, 4787024), (4708, 4460636), (4838, 4340776), (5071, 4141328), (5192, 4044814), (6313, 3326576), (7216, 2910293), (7376, 2847163), (8774, 2393512), (9416, 2230318), (9676, 2170388), (10142, 2070664), (10384, 2022407), (12626, 1663288), (17548, 1196756), (18832, 1115159), (18901, 1111088), (19352, 1085194), (20284, 1035332), (25252, 831644), (26609, 789232), (27199, 772112), (35096, 598378), (37802, 555544), (38704, 542597), (40568, 517666), (48257, 435184), (49327, 425744), (50504, 415822), (53218, 394616), (54398, 386056), (69443, 302416), (70192, 299189), (75604, 277772), (81136, 258833), (96514, 217592), (98654, 212872), (101008, 207911), (106436, 197308), (108796, 193028), (138886, 151208)]