221421519

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{248509}}^1$

素因数の和:248532

約数の個数: 20

約数和(自身を含む): 360836520

約数和(自身を除く): 139415001

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 248509, 745527, 2236581, 2733599, 6709743, 8200797, 20129229, 24602391, 73807173, 221421519]

約数ペア:

[(1, 221421519), (3, 73807173), (9, 24602391), (11, 20129229), (27, 8200797), (33, 6709743), (81, 2733599), (99, 2236581), (297, 745527), (891, 248509)]