21484957

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1451}}^1$

素因数の和:1548

約数の個数: 16

約数和(自身を含む): 24881472

約数和(自身を除く): 3396515

約数列:

[1, 13, 17, 67, 221, 871, 1139, 1451, 14807, 18863, 24667, 97217, 320671, 1263821, 1652689, 21484957]

約数ペア:

[(1, 21484957), (13, 1652689), (17, 1263821), (67, 320671), (221, 97217), (871, 24667), (1139, 18863), (1451, 14807)]