28920879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1637}}^1$

素因数の和:1807

約数の個数: 24

約数和(自身を含む): 45313632

約数和(自身を除く): 16392753

約数列:

[1, 3, 9, 13, 39, 117, 151, 453, 1359, 1637, 1963, 4911, 5889, 14733, 17667, 21281, 63843, 191529, 247187, 741561, 2224683, 3213431, 9640293, 28920879]

約数ペア:

[(1, 28920879), (3, 9640293), (9, 3213431), (13, 2224683), (39, 741561), (117, 247187), (151, 191529), (453, 63843), (1359, 21281), (1637, 17667), (1963, 14733), (4911, 5889)]