31321458

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 85155840

約数和(自身を除く): 53834382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 43, 47, 54, 63, 82, 86, 94, 123, 126, 129, 141, 189, 246, 258, 282, 287, 301, 329, 369, 378, 387, 423, 574, 602, 658, 738, 774, 846, 861, 903, 987, 1107, 1161, 1269, 1722, 1763, 1806, 1927, 1974, 2021, 2214, 2322, 2538, 2583, 2709, 2961, 3526, 3854, 4042, 5166, 5289, 5418, 5781, 5922, 6063, 7749, 8127, 8883, 10578, 11562, 12126, 12341, 13489, 14147, 15498, 15867, 16254, 17343, 17766, 18189, 24682, 26978, 28294, 31734, 34686, 36378, 37023, 40467, 42441, 47601, 52029, 54567, 74046, 80934, 82861, 84882, 95202, 104058, 109134, 111069, 121401, 127323, 165722, 222138, 242802, 248583, 254646, 333207, 364203, 381969, 497166, 580027, 666414, 728406, 745749, 763938, 1160054, 1491498, 1740081, 2237247, 3480162, 4474494, 5220243, 10440486, 15660729, 31321458]

約数ペア:

[(1, 31321458), (2, 15660729), (3, 10440486), (6, 5220243), (7, 4474494), (9, 3480162), (14, 2237247), (18, 1740081), (21, 1491498), (27, 1160054), (41, 763938), (42, 745749), (43, 728406), (47, 666414), (54, 580027), (63, 497166), (82, 381969), (86, 364203), (94, 333207), (123, 254646), (126, 248583), (129, 242802), (141, 222138), (189, 165722), (246, 127323), (258, 121401), (282, 111069), (287, 109134), (301, 104058), (329, 95202), (369, 84882), (378, 82861), (387, 80934), (423, 74046), (574, 54567), (602, 52029), (658, 47601), (738, 42441), (774, 40467), (846, 37023), (861, 36378), (903, 34686), (987, 31734), (1107, 28294), (1161, 26978), (1269, 24682), (1722, 18189), (1763, 17766), (1806, 17343), (1927, 16254), (1974, 15867), (2021, 15498), (2214, 14147), (2322, 13489), (2538, 12341), (2583, 12126), (2709, 11562), (2961, 10578), (3526, 8883), (3854, 8127), (4042, 7749), (5166, 6063), (5289, 5922), (5418, 5781)]