20023155

素因数分解:

$3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{991}}^1$

素因数の和:1451

約数の個数: 24

約数和(自身を含む): 34819200

約数和(自身を除く): 14796045

約数列:

[1, 3, 5, 9, 15, 45, 449, 991, 1347, 2245, 2973, 4041, 4955, 6735, 8919, 14865, 20205, 44595, 444959, 1334877, 2224795, 4004631, 6674385, 20023155]

約数ペア:

[(1, 20023155), (3, 6674385), (5, 4004631), (9, 2224795), (15, 1334877), (45, 444959), (449, 44595), (991, 20205), (1347, 14865), (2245, 8919), (2973, 6735), (4041, 4955)]