20644401

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 28257984

約数和(自身を除く): 7613583

約数列:

[1, 3, 53, 157, 159, 471, 827, 2481, 8321, 24963, 43831, 129839, 131493, 389517, 6881467, 20644401]

約数ペア:

[(1, 20644401), (3, 6881467), (53, 389517), (157, 131493), (159, 129839), (471, 43831), (827, 24963), (2481, 8321)]