18700778866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{10753}}^1$

素因数の和:11287

約数の個数: 64

約数和(自身を含む): 36571170816

約数和(自身を除く): 17870391950

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 491, 506, 982, 1771, 3437, 3542, 5401, 6874, 10753, 10802, 11293, 21506, 22586, 37807, 75271, 75614, 79051, 118283, 124223, 150542, 158102, 236566, 247319, 248446, 494638, 827981, 869561, 1655962, 1731233, 1739122, 2720509, 3462466, 5279723, 5441018, 10559446, 19043563, 36958061, 38087126, 58076953, 73916122, 116153906, 121433629, 242867258, 406538671, 813077342, 850035403, 1335769919, 1700070806, 2671539838, 9350389433, 18700778866]

約数ペア:

[(1, 18700778866), (2, 9350389433), (7, 2671539838), (11, 1700070806), (14, 1335769919), (22, 850035403), (23, 813077342), (46, 406538671), (77, 242867258), (154, 121433629), (161, 116153906), (253, 73916122), (322, 58076953), (491, 38087126), (506, 36958061), (982, 19043563), (1771, 10559446), (3437, 5441018), (3542, 5279723), (5401, 3462466), (6874, 2720509), (10753, 1739122), (10802, 1731233), (11293, 1655962), (21506, 869561), (22586, 827981), (37807, 494638), (75271, 248446), (75614, 247319), (79051, 236566), (118283, 158102), (124223, 150542)]