31916781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{90931}}^1$

素因数の和:90953

約数の個数: 16

約数和(自身を含む): 50921920

約数和(自身を除く): 19005139

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 90931, 272793, 818379, 1182103, 2455137, 3546309, 10638927, 31916781]

約数ペア:

[(1, 31916781), (3, 10638927), (9, 3546309), (13, 2455137), (27, 1182103), (39, 818379), (117, 272793), (351, 90931)]