215687157

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{193789}}^1$

素因数の和:193852

約数の個数: 16

約数和(自身を含む): 334869120

約数和(自身を除く): 119181963

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 193789, 581367, 1356523, 4069569, 10270817, 30812451, 71895719, 215687157]

約数ペア:

[(1, 215687157), (3, 71895719), (7, 30812451), (21, 10270817), (53, 4069569), (159, 1356523), (371, 581367), (1113, 193789)]