21888625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15919}}^1$

素因数の和:15945

約数の個数: 16

約数和(自身を含む): 29802240

約数和(自身を除く): 7913615

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15919, 79595, 175109, 397975, 875545, 1989875, 4377725, 21888625]

約数ペア:

[(1, 21888625), (5, 4377725), (11, 1989875), (25, 875545), (55, 397975), (125, 175109), (275, 79595), (1375, 15919)]