21187360

素因数分解:

$2^5\times 5^1\times {\mathrm{132421}}^1$

素因数の和:132436

約数の個数: 24

約数和(自身を含む): 50055516

約数和(自身を除く): 28868156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132421, 264842, 529684, 662105, 1059368, 1324210, 2118736, 2648420, 4237472, 5296840, 10593680, 21187360]

約数ペア:

[(1, 21187360), (2, 10593680), (4, 5296840), (5, 4237472), (8, 2648420), (10, 2118736), (16, 1324210), (20, 1059368), (32, 662105), (40, 529684), (80, 264842), (160, 132421)]