28688816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137927}}^1$

素因数の和:137948

約数の個数: 20

約数和(自身を含む): 59860752

約数和(自身を除く): 31171936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 137927, 275854, 551708, 1103416, 1793051, 2206832, 3586102, 7172204, 14344408, 28688816]

約数ペア:

[(1, 28688816), (2, 14344408), (4, 7172204), (8, 3586102), (13, 2206832), (16, 1793051), (26, 1103416), (52, 551708), (104, 275854), (208, 137927)]