21586095

素因数分解:

$3^4\times 5^1\times {\mathrm{53299}}^1$

素因数の和:53316

約数の個数: 20

約数和(自身を含む): 38695800

約数和(自身を除く): 17109705

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53299, 159897, 266495, 479691, 799485, 1439073, 2398455, 4317219, 7195365, 21586095]

約数ペア:

[(1, 21586095), (3, 7195365), (5, 4317219), (9, 2398455), (15, 1439073), (27, 799485), (45, 479691), (81, 266495), (135, 159897), (405, 53299)]