215312979

素因数分解:

$3^1\times 7^1\times {\mathrm{1231}}^1\times {\mathrm{8329}}^1$

素因数の和:9570

約数の個数: 16

約数和(自身を含む): 328401920

約数和(自身を除く): 113088941

約数列:

[1, 3, 7, 21, 1231, 3693, 8329, 8617, 24987, 25851, 58303, 174909, 10252999, 30758997, 71770993, 215312979]

約数ペア:

[(1, 215312979), (3, 71770993), (7, 30758997), (21, 10252999), (1231, 174909), (3693, 58303), (8329, 25851), (8617, 24987)]