21086673684

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{271}}^2\times {\mathrm{337}}^1$

素因数の和:957

約数の個数: 72

約数和(自身を含む): 50228627904

約数和(自身を除く): 29141954220

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 213, 271, 284, 337, 426, 542, 674, 813, 852, 1011, 1084, 1348, 1626, 2022, 3252, 4044, 19241, 23927, 38482, 47854, 57723, 71781, 73441, 76964, 91327, 95708, 115446, 143562, 146882, 182654, 220323, 230892, 273981, 287124, 293764, 365308, 440646, 547962, 881292, 1095924, 5214311, 6484217, 10428622, 12968434, 15642933, 19452651, 20857244, 24749617, 25936868, 31285866, 38905302, 49499234, 62571732, 74248851, 77810604, 98998468, 148497702, 296995404, 1757222807, 3514445614, 5271668421, 7028891228, 10543336842, 21086673684]

約数ペア:

[(1, 21086673684), (2, 10543336842), (3, 7028891228), (4, 5271668421), (6, 3514445614), (12, 1757222807), (71, 296995404), (142, 148497702), (213, 98998468), (271, 77810604), (284, 74248851), (337, 62571732), (426, 49499234), (542, 38905302), (674, 31285866), (813, 25936868), (852, 24749617), (1011, 20857244), (1084, 19452651), (1348, 15642933), (1626, 12968434), (2022, 10428622), (3252, 6484217), (4044, 5214311), (19241, 1095924), (23927, 881292), (38482, 547962), (47854, 440646), (57723, 365308), (71781, 293764), (73441, 287124), (76964, 273981), (91327, 230892), (95708, 220323), (115446, 182654), (143562, 146882)]