20721972

素因数分解:

$2^2\times 3^1\times {\mathrm{191}}^1\times {\mathrm{9041}}^1$

素因数の和:9239

約数の個数: 24

約数和(自身を含む): 48609792

約数和(自身を除く): 27887820

約数列:

[1, 2, 3, 4, 6, 12, 191, 382, 573, 764, 1146, 2292, 9041, 18082, 27123, 36164, 54246, 108492, 1726831, 3453662, 5180493, 6907324, 10360986, 20721972]

約数ペア:

[(1, 20721972), (2, 10360986), (3, 6907324), (4, 5180493), (6, 3453662), (12, 1726831), (191, 108492), (382, 54246), (573, 36164), (764, 27123), (1146, 18082), (2292, 9041)]