18071425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 24018552

約数和(自身を除く): 5947127

約数列:

[1, 5, 17, 25, 85, 101, 421, 425, 505, 1717, 2105, 2525, 7157, 8585, 10525, 35785, 42521, 42925, 178925, 212605, 722857, 1063025, 3614285, 18071425]

約数ペア:

[(1, 18071425), (5, 3614285), (17, 1063025), (25, 722857), (85, 212605), (101, 178925), (421, 42925), (425, 42521), (505, 35785), (1717, 10525), (2105, 8585), (2525, 7157)]