21954621

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{3331}}^1$

素因数の和:3373

約数の個数: 16

約数和(自身を含む): 31720640

約数和(自身を除く): 9766019

約数列:

[1, 3, 13, 39, 169, 507, 2197, 3331, 6591, 9993, 43303, 129909, 562939, 1688817, 7318207, 21954621]

約数ペア:

[(1, 21954621), (3, 7318207), (13, 1688817), (39, 562939), (169, 129909), (507, 43303), (2197, 9993), (3331, 6591)]