20609475

素因数分解:

$3^1\times 5^2\times {\mathrm{283}}^1\times {\mathrm{971}}^1$

素因数の和:1267

約数の個数: 24

約数和(自身を含む): 34229952

約数和(自身を除く): 13620477

約数列:

[1, 3, 5, 15, 25, 75, 283, 849, 971, 1415, 2913, 4245, 4855, 7075, 14565, 21225, 24275, 72825, 274793, 824379, 1373965, 4121895, 6869825, 20609475]

約数ペア:

[(1, 20609475), (3, 6869825), (5, 4121895), (15, 1373965), (25, 824379), (75, 274793), (283, 72825), (849, 24275), (971, 21225), (1415, 14565), (2913, 7075), (4245, 4855)]