21580125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{8221}}^1$

素因数の和:8246

約数の個数: 32

約数和(自身を含む): 41044224

約数和(自身を除く): 19464099

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 8221, 24663, 41105, 57547, 123315, 172641, 205525, 287735, 616575, 863205, 1027625, 1438675, 3082875, 4316025, 7193375, 21580125]

約数ペア:

[(1, 21580125), (3, 7193375), (5, 4316025), (7, 3082875), (15, 1438675), (21, 1027625), (25, 863205), (35, 616575), (75, 287735), (105, 205525), (125, 172641), (175, 123315), (375, 57547), (525, 41105), (875, 24663), (2625, 8221)]