20980739

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:926

約数の個数: 16

約数和(自身を含む): 23671872

約数和(自身を除く): 2691133

約数列:

[1, 13, 37, 53, 481, 689, 823, 1961, 10699, 25493, 30451, 43619, 395863, 567047, 1613903, 20980739]

約数ペア:

[(1, 20980739), (13, 1613903), (37, 567047), (53, 395863), (481, 43619), (689, 30451), (823, 25493), (1961, 10699)]