221521125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{84389}}^1$

素因数の和:84414

約数の個数: 32

約数和(自身を含む): 421274880

約数和(自身を除く): 199753755

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 84389, 253167, 421945, 590723, 1265835, 1772169, 2109725, 2953615, 6329175, 8860845, 10548625, 14768075, 31645875, 44304225, 73840375, 221521125]

約数ペア:

[(1, 221521125), (3, 73840375), (5, 44304225), (7, 31645875), (15, 14768075), (21, 10548625), (25, 8860845), (35, 6329175), (75, 2953615), (105, 2109725), (125, 1772169), (175, 1265835), (375, 590723), (525, 421945), (875, 253167), (2625, 84389)]