217408090

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{41729}}^1$

素因数の和:42257

約数の個数: 16

約数和(自身を含む): 392095080

約数和(自身を除く): 174686990

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 41729, 83458, 208645, 417290, 21740809, 43481618, 108704045, 217408090]

約数ペア:

[(1, 217408090), (2, 108704045), (5, 43481618), (10, 21740809), (521, 417290), (1042, 208645), (2605, 83458), (5210, 41729)]