20557575

素因数分解:

$3^2\times 5^2\times {\mathrm{91367}}^1$

素因数の和:91383

約数の個数: 18

約数和(自身を含む): 36821304

約数和(自身を除く): 16263729

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 91367, 274101, 456835, 822303, 1370505, 2284175, 4111515, 6852525, 20557575]

約数ペア:

[(1, 20557575), (3, 6852525), (5, 4111515), (9, 2284175), (15, 1370505), (25, 822303), (45, 456835), (75, 274101), (225, 91367)]