81121698

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{383}}^1$

素因数の和:480

約数の個数: 72

約数和(自身を含む): 206429184

約数和(自身を除く): 125307486

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 63, 82, 123, 126, 246, 287, 369, 383, 574, 738, 766, 861, 1149, 1681, 1722, 2298, 2583, 2681, 3362, 3447, 5043, 5166, 5362, 6894, 8043, 10086, 11767, 15129, 15703, 16086, 23534, 24129, 30258, 31406, 35301, 47109, 48258, 70602, 94218, 105903, 109921, 141327, 211806, 219842, 282654, 329763, 643823, 659526, 989289, 1287646, 1931469, 1978578, 3862938, 4506761, 5794407, 9013522, 11588814, 13520283, 27040566, 40560849, 81121698]

約数ペア:

[(1, 81121698), (2, 40560849), (3, 27040566), (6, 13520283), (7, 11588814), (9, 9013522), (14, 5794407), (18, 4506761), (21, 3862938), (41, 1978578), (42, 1931469), (63, 1287646), (82, 989289), (123, 659526), (126, 643823), (246, 329763), (287, 282654), (369, 219842), (383, 211806), (574, 141327), (738, 109921), (766, 105903), (861, 94218), (1149, 70602), (1681, 48258), (1722, 47109), (2298, 35301), (2583, 31406), (2681, 30258), (3362, 24129), (3447, 23534), (5043, 16086), (5166, 15703), (5362, 15129), (6894, 11767), (8043, 10086)]