20268285

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9721}}^1$

素因数の和:9868

約数の個数: 16

約数和(自身を含む): 32665920

約数和(自身を除く): 12397635

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9721, 29163, 48605, 145815, 1351219, 4053657, 6756095, 20268285]

約数ペア:

[(1, 20268285), (3, 6756095), (5, 4053657), (15, 1351219), (139, 145815), (417, 48605), (695, 29163), (2085, 9721)]