20279745

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23719}}^1$

素因数の和:23749

約数の個数: 24

約数和(自身を含む): 37003200

約数和(自身を除く): 16723455

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23719, 71157, 118595, 213471, 355785, 450661, 1067355, 1351983, 2253305, 4055949, 6759915, 20279745]

約数ペア:

[(1, 20279745), (3, 6759915), (5, 4055949), (9, 2253305), (15, 1351983), (19, 1067355), (45, 450661), (57, 355785), (95, 213471), (171, 118595), (285, 71157), (855, 23719)]