21876580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99439}}^1$

素因数の和:99459

約数の個数: 24

約数和(自身を含む): 50117760

約数和(自身を除く): 28241180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 99439, 198878, 397756, 497195, 994390, 1093829, 1988780, 2187658, 4375316, 5469145, 10938290, 21876580]

約数ペア:

[(1, 21876580), (2, 10938290), (4, 5469145), (5, 4375316), (10, 2187658), (11, 1988780), (20, 1093829), (22, 994390), (44, 497195), (55, 397756), (110, 198878), (220, 99439)]