21273187

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{941}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 24054912

約数和(自身を除く): 2781725

約数列:

[1, 13, 37, 47, 481, 611, 941, 1739, 12233, 22607, 34817, 44227, 452621, 574951, 1636399, 21273187]

約数ペア:

[(1, 21273187), (13, 1636399), (37, 574951), (47, 452621), (481, 44227), (611, 34817), (941, 22607), (1739, 12233)]