21009715204

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{491}}^1\times {\mathrm{1289}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 37923399360

約数和(自身を除く): 16913684156

約数列:

[1, 2, 4, 43, 86, 172, 193, 386, 491, 772, 982, 1289, 1964, 2578, 5156, 8299, 16598, 21113, 33196, 42226, 55427, 84452, 94763, 110854, 189526, 221708, 248777, 379052, 497554, 632899, 995108, 1265798, 2531596, 4074809, 8149618, 10697411, 16299236, 21394822, 27214657, 42789644, 54429314, 108858628, 122149507, 244299014, 488598028, 5252428801, 10504857602, 21009715204]

約数ペア:

[(1, 21009715204), (2, 10504857602), (4, 5252428801), (43, 488598028), (86, 244299014), (172, 122149507), (193, 108858628), (386, 54429314), (491, 42789644), (772, 27214657), (982, 21394822), (1289, 16299236), (1964, 10697411), (2578, 8149618), (5156, 4074809), (8299, 2531596), (16598, 1265798), (21113, 995108), (33196, 632899), (42226, 497554), (55427, 379052), (84452, 248777), (94763, 221708), (110854, 189526)]