28401164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{645481}}^1$

素因数の和:645496

約数の個数: 12

約数和(自身を含む): 54220488

約数和(自身を除く): 25819324

約数列:

[1, 2, 4, 11, 22, 44, 645481, 1290962, 2581924, 7100291, 14200582, 28401164]

約数ペア:

[(1, 28401164), (2, 14200582), (4, 7100291), (11, 2581924), (22, 1290962), (44, 645481)]