21374870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4519}}^1$

素因数の和:4580

約数の個数: 32

約数和(自身を含む): 42958080

約数和(自身を除く): 21583210

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4519, 4730, 9038, 22595, 45190, 49709, 99418, 194317, 248545, 388634, 497090, 971585, 1943170, 2137487, 4274974, 10687435, 21374870]

約数ペア:

[(1, 21374870), (2, 10687435), (5, 4274974), (10, 2137487), (11, 1943170), (22, 971585), (43, 497090), (55, 388634), (86, 248545), (110, 194317), (215, 99418), (430, 49709), (473, 45190), (946, 22595), (2365, 9038), (4519, 4730)]