216804515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{5843}}^1$

素因数の和:6070

約数の個数: 16

約数和(自身を含む): 268029216

約数和(自身を除く): 51224701

約数列:

[1, 5, 41, 181, 205, 905, 5843, 7421, 29215, 37105, 239563, 1057583, 1197815, 5287915, 43360903, 216804515]

約数ペア:

[(1, 216804515), (5, 43360903), (41, 5287915), (181, 1197815), (205, 1057583), (905, 239563), (5843, 37105), (7421, 29215)]