20628075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21157}}^1$

素因数の和:21183

約数の個数: 24

約数和(自身を含む): 36730288

約数和(自身を除く): 16102213

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21157, 63471, 105785, 275041, 317355, 528925, 825123, 1375205, 1586775, 4125615, 6876025, 20628075]

約数ペア:

[(1, 20628075), (3, 6876025), (5, 4125615), (13, 1586775), (15, 1375205), (25, 825123), (39, 528925), (65, 317355), (75, 275041), (195, 105785), (325, 63471), (975, 21157)]