28171930

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{27893}}^1$

素因数の和:28001

約数の個数: 16

約数和(自身を含む): 51213384

約数和(自身を除く): 23041454

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 27893, 55786, 139465, 278930, 2817193, 5634386, 14085965, 28171930]

約数ペア:

[(1, 28171930), (2, 14085965), (5, 5634386), (10, 2817193), (101, 278930), (202, 139465), (505, 55786), (1010, 27893)]