291216198290

素因数分解:

$2^1\times 5^1\times {\mathrm{21881}}^1\times {\mathrm{1330909}}^1$

素因数の和:1352797

約数の個数: 16

約数和(自身を含む): 524213507160

約数和(自身を除く): 232997308870

約数列:

[1, 2, 5, 10, 21881, 43762, 109405, 218810, 1330909, 2661818, 6654545, 13309090, 29121619829, 58243239658, 145608099145, 291216198290]

約数ペア:

[(1, 291216198290), (2, 145608099145), (5, 58243239658), (10, 29121619829), (21881, 13309090), (43762, 6654545), (109405, 2661818), (218810, 1330909)]