21353584

素因数分解:

$2^4\times 7^1\times {\mathrm{190657}}^1$

素因数の和:190672

約数の個数: 20

約数和(自身を含む): 47283184

約数和(自身を除く): 25929600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190657, 381314, 762628, 1334599, 1525256, 2669198, 3050512, 5338396, 10676792, 21353584]

約数ペア:

[(1, 21353584), (2, 10676792), (4, 5338396), (7, 3050512), (8, 2669198), (14, 1525256), (16, 1334599), (28, 762628), (56, 381314), (112, 190657)]