21004890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7867}}^1$

素因数の和:7966

約数の個数: 32

約数和(自身を含む): 50984640

約数和(自身を除く): 29979750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7867, 15734, 23601, 39335, 47202, 78670, 118005, 236010, 700163, 1400326, 2100489, 3500815, 4200978, 7001630, 10502445, 21004890]

約数ペア:

[(1, 21004890), (2, 10502445), (3, 7001630), (5, 4200978), (6, 3500815), (10, 2100489), (15, 1400326), (30, 700163), (89, 236010), (178, 118005), (267, 78670), (445, 47202), (534, 39335), (890, 23601), (1335, 15734), (2670, 7867)]