20281672

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{87421}}^1$

素因数の和:87456

約数の個数: 16

約数和(自身を含む): 39339900

約数和(自身を除く): 19058228

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 87421, 174842, 349684, 699368, 2535209, 5070418, 10140836, 20281672]

約数ペア:

[(1, 20281672), (2, 10140836), (4, 5070418), (8, 2535209), (29, 699368), (58, 349684), (116, 174842), (232, 87421)]