20775728

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11491}}^1$

素因数の和:11612

約数の個数: 20

約数和(自身を含む): 40612728

約数和(自身を除く): 19837000

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11491, 22982, 45964, 91928, 183856, 1298483, 2596966, 5193932, 10387864, 20775728]

約数ペア:

[(1, 20775728), (2, 10387864), (4, 5193932), (8, 2596966), (16, 1298483), (113, 183856), (226, 91928), (452, 45964), (904, 22982), (1808, 11491)]