21495160

素因数分解:

$2^3\times 5^1\times {\mathrm{537379}}^1$

素因数の和:537390

約数の個数: 16

約数和(自身を含む): 48364200

約数和(自身を除く): 26869040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 537379, 1074758, 2149516, 2686895, 4299032, 5373790, 10747580, 21495160]

約数ペア:

[(1, 21495160), (2, 10747580), (4, 5373790), (5, 4299032), (8, 2686895), (10, 2149516), (20, 1074758), (40, 537379)]