21791745

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9137}}^1$

素因数の和:9201

約数の個数: 24

約数和(自身を含む): 38489256

約数和(自身を除く): 16697511

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 9137, 27411, 45685, 82233, 137055, 411165, 484261, 1452783, 2421305, 4358349, 7263915, 21791745]

約数ペア:

[(1, 21791745), (3, 7263915), (5, 4358349), (9, 2421305), (15, 1452783), (45, 484261), (53, 411165), (159, 137055), (265, 82233), (477, 45685), (795, 27411), (2385, 9137)]