21656760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180473}}^1$

素因数の和:180487

約数の個数: 32

約数和(自身を含む): 64970640

約数和(自身を除く): 43313880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180473, 360946, 541419, 721892, 902365, 1082838, 1443784, 1804730, 2165676, 2707095, 3609460, 4331352, 5414190, 7218920, 10828380, 21656760]

約数ペア:

[(1, 21656760), (2, 10828380), (3, 7218920), (4, 5414190), (5, 4331352), (6, 3609460), (8, 2707095), (10, 2165676), (12, 1804730), (15, 1443784), (20, 1082838), (24, 902365), (30, 721892), (40, 541419), (60, 360946), (120, 180473)]