18247725

素因数分解:

$3^2\times 5^2\times {\mathrm{81101}}^1$

素因数の和:81117

約数の個数: 18

約数和(自身を含む): 32684106

約数和(自身を除く): 14436381

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 81101, 243303, 405505, 729909, 1216515, 2027525, 3649545, 6082575, 18247725]

約数ペア:

[(1, 18247725), (3, 6082575), (5, 3649545), (9, 2027525), (15, 1216515), (25, 729909), (45, 405505), (75, 243303), (225, 81101)]