81711838

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{1601}}^1$

素因数の和:1780

約数の個数: 24

約数和(自身を含む): 133683696

約数和(自身を除く): 51971858

約数列:

[1, 2, 13, 26, 151, 169, 302, 338, 1601, 1963, 3202, 3926, 20813, 25519, 41626, 51038, 241751, 270569, 483502, 541138, 3142763, 6285526, 40855919, 81711838]

約数ペア:

[(1, 81711838), (2, 40855919), (13, 6285526), (26, 3142763), (151, 541138), (169, 483502), (302, 270569), (338, 241751), (1601, 51038), (1963, 41626), (3202, 25519), (3926, 20813)]