21491325

素因数分解:

$3^4\times 5^2\times {\mathrm{10613}}^1$

素因数の和:10635

約数の個数: 30

約数和(自身を含む): 39813114

約数和(自身を除く): 18321789

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10613, 31839, 53065, 95517, 159195, 265325, 286551, 477585, 795975, 859653, 1432755, 2387925, 4298265, 7163775, 21491325]

約数ペア:

[(1, 21491325), (3, 7163775), (5, 4298265), (9, 2387925), (15, 1432755), (25, 859653), (27, 795975), (45, 477585), (75, 286551), (81, 265325), (135, 159195), (225, 95517), (405, 53065), (675, 31839), (2025, 10613)]