21287610

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:701

約数の個数: 80

約数和(自身を含む): 58727592

約数和(自身を除く): 37439982

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 81, 82, 90, 123, 135, 162, 205, 246, 270, 369, 405, 410, 615, 641, 738, 810, 1107, 1230, 1282, 1845, 1923, 2214, 3205, 3321, 3690, 3846, 5535, 5769, 6410, 6642, 9615, 11070, 11538, 16605, 17307, 19230, 26281, 28845, 33210, 34614, 51921, 52562, 57690, 78843, 86535, 103842, 131405, 157686, 173070, 236529, 259605, 262810, 394215, 473058, 519210, 709587, 788430, 1182645, 1419174, 2128761, 2365290, 3547935, 4257522, 7095870, 10643805, 21287610]

約数ペア:

[(1, 21287610), (2, 10643805), (3, 7095870), (5, 4257522), (6, 3547935), (9, 2365290), (10, 2128761), (15, 1419174), (18, 1182645), (27, 788430), (30, 709587), (41, 519210), (45, 473058), (54, 394215), (81, 262810), (82, 259605), (90, 236529), (123, 173070), (135, 157686), (162, 131405), (205, 103842), (246, 86535), (270, 78843), (369, 57690), (405, 52562), (410, 51921), (615, 34614), (641, 33210), (738, 28845), (810, 26281), (1107, 19230), (1230, 17307), (1282, 16605), (1845, 11538), (1923, 11070), (2214, 9615), (3205, 6642), (3321, 6410), (3690, 5769), (3846, 5535)]