21127725

素因数分解:

$3^2\times 5^2\times {\mathrm{93901}}^1$

素因数の和:93917

約数の個数: 18

約数和(自身を含む): 37842506

約数和(自身を除く): 16714781

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 93901, 281703, 469505, 845109, 1408515, 2347525, 4225545, 7042575, 21127725]

約数ペア:

[(1, 21127725), (3, 7042575), (5, 4225545), (9, 2347525), (15, 1408515), (25, 845109), (45, 469505), (75, 281703), (225, 93901)]