21974381

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4957}}^1$

素因数の和:5012

約数の個数: 16

約数和(自身を含む): 26654208

約数和(自身を除く): 4679827

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4957, 54527, 64441, 153667, 708851, 1690337, 1997671, 21974381]

約数ペア:

[(1, 21974381), (11, 1997671), (13, 1690337), (31, 708851), (143, 153667), (341, 64441), (403, 54527), (4433, 4957)]