21886396

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16631}}^1$

素因数の和:16689

約数の個数: 24

約数和(自身を含む): 44706816

約数和(自身を除く): 22820420

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16631, 33262, 66524, 116417, 232834, 465668, 781657, 1563314, 3126628, 5471599, 10943198, 21886396]

約数ペア:

[(1, 21886396), (2, 10943198), (4, 5471599), (7, 3126628), (14, 1563314), (28, 781657), (47, 465668), (94, 232834), (188, 116417), (329, 66524), (658, 33262), (1316, 16631)]