20897169

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1861}}^1$

素因数の和:2080

約数の個数: 16

約数和(自身を含む): 29494080

約数和(自身を除く): 8596911

約数列:

[1, 3, 19, 57, 197, 591, 1861, 3743, 5583, 11229, 35359, 106077, 366617, 1099851, 6965723, 20897169]

約数ペア:

[(1, 20897169), (3, 6965723), (19, 1099851), (57, 366617), (197, 106077), (591, 35359), (1861, 11229), (3743, 5583)]