12121895

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 14968800

約数和(自身を除く): 2846905

約数列:

[1, 5, 53, 149, 265, 307, 745, 1535, 7897, 16271, 39485, 45743, 81355, 228715, 2424379, 12121895]

約数ペア:

[(1, 12121895), (5, 2424379), (53, 228715), (149, 81355), (265, 45743), (307, 39485), (745, 16271), (1535, 7897)]