28407778

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47189}}^1$

素因数の和:47241

約数の個数: 16

約数和(自身を含む): 49832640

約数和(自身を除く): 21424862

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 47189, 94378, 330323, 660646, 2029127, 4058254, 14203889, 28407778]

約数ペア:

[(1, 28407778), (2, 14203889), (7, 4058254), (14, 2029127), (43, 660646), (86, 330323), (301, 94378), (602, 47189)]