21820725

素因数分解:

$3^3\times 5^2\times {\mathrm{32327}}^1$

素因数の和:32346

約数の個数: 24

約数和(自身を含む): 40086720

約数和(自身を除く): 18265995

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 32327, 96981, 161635, 290943, 484905, 808175, 872829, 1454715, 2424525, 4364145, 7273575, 21820725]

約数ペア:

[(1, 21820725), (3, 7273575), (5, 4364145), (9, 2424525), (15, 1454715), (25, 872829), (27, 808175), (45, 484905), (75, 290943), (135, 161635), (225, 96981), (675, 32327)]