28215747

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{7591}}^1$

素因数の和:7663

約数の個数: 24

約数和(自身を含む): 47374080

約数和(自身を除く): 19158333

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 7591, 22773, 53137, 68319, 159411, 447869, 478233, 1343607, 3135083, 4030821, 9405249, 28215747]

約数ペア:

[(1, 28215747), (3, 9405249), (7, 4030821), (9, 3135083), (21, 1343607), (59, 478233), (63, 447869), (177, 159411), (413, 68319), (531, 53137), (1239, 22773), (3717, 7591)]