20425468

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4831}}^1$

素因数の和:4993

約数の個数: 24

約数和(自身を含む): 41129984

約数和(自身を除く): 20704516

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4831, 9662, 19324, 33817, 67634, 135268, 729481, 1458962, 2917924, 5106367, 10212734, 20425468]

約数ペア:

[(1, 20425468), (2, 10212734), (4, 5106367), (7, 2917924), (14, 1458962), (28, 729481), (151, 135268), (302, 67634), (604, 33817), (1057, 19324), (2114, 9662), (4228, 4831)]