20124377

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{787}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 24888192

約数和(自身を除く): 4763815

約数列:

[1, 7, 13, 91, 281, 787, 1967, 3653, 5509, 10231, 25571, 71617, 221147, 1548029, 2874911, 20124377]

約数ペア:

[(1, 20124377), (7, 2874911), (13, 1548029), (91, 221147), (281, 71617), (787, 25571), (1967, 10231), (3653, 5509)]