20797381

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 3279419

約数列:

[1, 11, 19, 151, 209, 659, 1661, 2869, 7249, 12521, 31559, 99509, 137731, 1094599, 1890671, 20797381]

約数ペア:

[(1, 20797381), (11, 1890671), (19, 1094599), (151, 137731), (209, 99509), (659, 31559), (1661, 12521), (2869, 7249)]