221330249

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1\times {\mathrm{641}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 256265856

約数和(自身を除く): 34935607

約数列:

[1, 7, 107, 461, 641, 749, 3227, 4487, 49327, 68587, 295501, 345289, 480109, 2068507, 31618607, 221330249]

約数ペア:

[(1, 221330249), (7, 31618607), (107, 2068507), (461, 480109), (641, 345289), (749, 295501), (3227, 68587), (4487, 49327)]