21480975

素因数分解:

$3^2\times 5^2\times {\mathrm{95471}}^1$

素因数の和:95487

約数の個数: 18

約数和(自身を含む): 38475216

約数和(自身を除く): 16994241

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 95471, 286413, 477355, 859239, 1432065, 2386775, 4296195, 7160325, 21480975]

約数ペア:

[(1, 21480975), (3, 7160325), (5, 4296195), (9, 2386775), (15, 1432065), (25, 859239), (45, 477355), (75, 286413), (225, 95471)]