81531714

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 183140352

約数和(自身を除く): 101608638

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 127, 137, 142, 213, 254, 274, 381, 411, 426, 762, 781, 822, 1397, 1507, 1562, 2343, 2794, 3014, 4191, 4521, 4686, 8382, 9017, 9042, 9727, 17399, 18034, 19454, 27051, 29181, 34798, 52197, 54102, 58362, 99187, 104394, 106997, 191389, 198374, 213994, 297561, 320991, 382778, 574167, 595122, 641982, 1148334, 1235329, 2470658, 3705987, 7411974, 13588619, 27177238, 40765857, 81531714]

約数ペア:

[(1, 81531714), (2, 40765857), (3, 27177238), (6, 13588619), (11, 7411974), (22, 3705987), (33, 2470658), (66, 1235329), (71, 1148334), (127, 641982), (137, 595122), (142, 574167), (213, 382778), (254, 320991), (274, 297561), (381, 213994), (411, 198374), (426, 191389), (762, 106997), (781, 104394), (822, 99187), (1397, 58362), (1507, 54102), (1562, 52197), (2343, 34798), (2794, 29181), (3014, 27051), (4191, 19454), (4521, 18034), (4686, 17399), (8382, 9727), (9017, 9042)]