28266788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{642427}}^1$

素因数の和:642442

約数の個数: 12

約数和(自身を含む): 53963952

約数和(自身を除く): 25697164

約数列:

[1, 2, 4, 11, 22, 44, 642427, 1284854, 2569708, 7066697, 14133394, 28266788]

約数ペア:

[(1, 28266788), (2, 14133394), (4, 7066697), (11, 2569708), (22, 1284854), (44, 642427)]