21235530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1783}}^1$

素因数の和:2190

約数の個数: 32

約数和(自身を含む): 51122304

約数和(自身を除く): 29886774

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 397, 794, 1191, 1783, 1985, 2382, 3566, 3970, 5349, 5955, 8915, 10698, 11910, 17830, 26745, 53490, 707851, 1415702, 2123553, 3539255, 4247106, 7078510, 10617765, 21235530]

約数ペア:

[(1, 21235530), (2, 10617765), (3, 7078510), (5, 4247106), (6, 3539255), (10, 2123553), (15, 1415702), (30, 707851), (397, 53490), (794, 26745), (1191, 17830), (1783, 11910), (1985, 10698), (2382, 8915), (3566, 5955), (3970, 5349)]