20729206

素因数分解:

$2^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:687

約数の個数: 16

約数和(自身を含む): 31541328

約数和(自身を除く): 10812122

約数列:

[1, 2, 173, 181, 331, 346, 362, 662, 31313, 57263, 59911, 62626, 114526, 119822, 10364603, 20729206]

約数ペア:

[(1, 20729206), (2, 10364603), (173, 119822), (181, 114526), (331, 62626), (346, 59911), (362, 57263), (662, 31313)]