21399272

素因数分解:

$2^3\times {\mathrm{359}}^1\times {\mathrm{7451}}^1$

素因数の和:7816

約数の個数: 16

約数和(自身を含む): 40240800

約数和(自身を除く): 18841528

約数列:

[1, 2, 4, 8, 359, 718, 1436, 2872, 7451, 14902, 29804, 59608, 2674909, 5349818, 10699636, 21399272]

約数ペア:

[(1, 21399272), (2, 10699636), (4, 5349818), (8, 2674909), (359, 59608), (718, 29804), (1436, 14902), (2872, 7451)]