21091796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{953}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 40388544

約数和(自身を除く): 19296748

約数列:

[1, 2, 4, 11, 22, 44, 503, 953, 1006, 1906, 2012, 3812, 5533, 10483, 11066, 20966, 22132, 41932, 479359, 958718, 1917436, 5272949, 10545898, 21091796]

約数ペア:

[(1, 21091796), (2, 10545898), (4, 5272949), (11, 1917436), (22, 958718), (44, 479359), (503, 41932), (953, 22132), (1006, 20966), (1906, 11066), (2012, 10483), (3812, 5533)]