217647518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139339}}^1$

素因数の和:139423

約数の個数: 16

約数和(自身を含む): 361169280

約数和(自身を除く): 143521762

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 139339, 278678, 1532729, 3065458, 9893069, 19786138, 108823759, 217647518]

約数ペア:

[(1, 217647518), (2, 108823759), (11, 19786138), (22, 9893069), (71, 3065458), (142, 1532729), (781, 278678), (1562, 139339)]