21872925

素因数分解:

$3^2\times 5^2\times {\mathrm{97213}}^1$

素因数の和:97229

約数の個数: 18

約数和(自身を含む): 39177242

約数和(自身を除く): 17304317

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 97213, 291639, 486065, 874917, 1458195, 2430325, 4374585, 7290975, 21872925]

約数ペア:

[(1, 21872925), (3, 7290975), (5, 4374585), (9, 2430325), (15, 1458195), (25, 874917), (45, 486065), (75, 291639), (225, 97213)]