31906251

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{90901}}^1$

素因数の和:90923

約数の個数: 16

約数和(自身を含む): 50905120

約数和(自身を除く): 18998869

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 90901, 272703, 818109, 1181713, 2454327, 3545139, 10635417, 31906251]

約数ペア:

[(1, 31906251), (3, 10635417), (9, 3545139), (13, 2454327), (27, 1181713), (39, 818109), (117, 272703), (351, 90901)]