15872121

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 23699520

約数和(自身を除く): 7827399

約数列:

[1, 3, 9, 59, 71, 177, 213, 421, 531, 639, 1263, 3789, 4189, 12567, 24839, 29891, 37701, 74517, 89673, 223551, 269019, 1763569, 5290707, 15872121]

約数ペア:

[(1, 15872121), (3, 5290707), (9, 1763569), (59, 269019), (71, 223551), (177, 89673), (213, 74517), (421, 37701), (531, 29891), (639, 24839), (1263, 12567), (3789, 4189)]