20973029

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{233}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 26889408

約数和(自身を除く): 5916379

約数列:

[1, 7, 11, 49, 77, 167, 233, 539, 1169, 1631, 1837, 2563, 8183, 11417, 12859, 17941, 38911, 90013, 125587, 272377, 428021, 1906639, 2996147, 20973029]

約数ペア:

[(1, 20973029), (7, 2996147), (11, 1906639), (49, 428021), (77, 272377), (167, 125587), (233, 90013), (539, 38911), (1169, 17941), (1631, 12859), (1837, 11417), (2563, 8183)]