51215913

素因数分解:

$3^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1931}}^1$

素因数の和:2365

約数の個数: 24

約数和(自身を含む): 84791616

約数和(自身を除く): 33575703

約数列:

[1, 3, 7, 9, 21, 63, 421, 1263, 1931, 2947, 3789, 5793, 8841, 13517, 17379, 26523, 40551, 121653, 812951, 2438853, 5690657, 7316559, 17071971, 51215913]

約数ペア:

[(1, 51215913), (3, 17071971), (7, 7316559), (9, 5690657), (21, 2438853), (63, 812951), (421, 121653), (1263, 40551), (1931, 26523), (2947, 17379), (3789, 13517), (5793, 8841)]