21803085

素因数分解:

$3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{733}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 37900824

約数和(自身を除く): 16097739

約数列:

[1, 3, 5, 9, 15, 45, 661, 733, 1983, 2199, 3305, 3665, 5949, 6597, 9915, 10995, 29745, 32985, 484513, 1453539, 2422565, 4360617, 7267695, 21803085]

約数ペア:

[(1, 21803085), (3, 7267695), (5, 4360617), (9, 2422565), (15, 1453539), (45, 484513), (661, 32985), (733, 29745), (1983, 10995), (2199, 9915), (3305, 6597), (3665, 5949)]