21215018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4211}}^1$

素因数の和:4453

約数の個数: 16

約数和(自身を含む): 34875360

約数和(自身を除く): 13660342

約数列:

[1, 2, 11, 22, 229, 458, 2519, 4211, 5038, 8422, 46321, 92642, 964319, 1928638, 10607509, 21215018]

約数ペア:

[(1, 21215018), (2, 10607509), (11, 1928638), (22, 964319), (229, 92642), (458, 46321), (2519, 8422), (4211, 5038)]