217227265

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1\times {\mathrm{971}}^1$

素因数の和:1520

約数の個数: 16

約数和(自身を含む): 264119616

約数和(自身を除く): 46892351

約数列:

[1, 5, 101, 443, 505, 971, 2215, 4855, 44743, 98071, 223715, 430153, 490355, 2150765, 43445453, 217227265]

約数ペア:

[(1, 217227265), (5, 43445453), (101, 2150765), (443, 490355), (505, 430153), (971, 223715), (2215, 98071), (4855, 44743)]