20485725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21011}}^1$

素因数の和:21037

約数の個数: 24

約数和(自身を含む): 36476832

約数和(自身を除く): 15991107

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21011, 63033, 105055, 273143, 315165, 525275, 819429, 1365715, 1575825, 4097145, 6828575, 20485725]

約数ペア:

[(1, 20485725), (3, 6828575), (5, 4097145), (13, 1575825), (15, 1365715), (25, 819429), (39, 525275), (65, 315165), (75, 273143), (195, 105055), (325, 63033), (975, 21011)]