21907812

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{42457}}^1$

素因数の和:42507

約数の個数: 24

約数和(自身を含む): 52308256

約数和(自身を除く): 30400444

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 42457, 84914, 127371, 169828, 254742, 509484, 1825651, 3651302, 5476953, 7302604, 10953906, 21907812]

約数ペア:

[(1, 21907812), (2, 10953906), (3, 7302604), (4, 5476953), (6, 3651302), (12, 1825651), (43, 509484), (86, 254742), (129, 169828), (172, 127371), (258, 84914), (516, 42457)]