21000918075

素因数分解:

$3^1\times 5^2\times {\mathrm{5147}}^1\times {\mathrm{54403}}^1$

素因数の和:59563

約数の個数: 24

約数和(自身を含む): 34728902208

約数和(自身を除く): 13727984133

約数列:

[1, 3, 5, 15, 25, 75, 5147, 15441, 25735, 54403, 77205, 128675, 163209, 272015, 386025, 816045, 1360075, 4080225, 280012241, 840036723, 1400061205, 4200183615, 7000306025, 21000918075]

約数ペア:

[(1, 21000918075), (3, 7000306025), (5, 4200183615), (15, 1400061205), (25, 840036723), (75, 280012241), (5147, 4080225), (15441, 1360075), (25735, 816045), (54403, 386025), (77205, 272015), (128675, 163209)]