31971105

素因数分解:

$3^4\times 5^1\times {\mathrm{78941}}^1$

素因数の和:78958

約数の個数: 20

約数和(自身を含む): 57311892

約数和(自身を除く): 25340787

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 78941, 236823, 394705, 710469, 1184115, 2131407, 3552345, 6394221, 10657035, 31971105]

約数ペア:

[(1, 31971105), (3, 10657035), (5, 6394221), (9, 3552345), (15, 2131407), (27, 1184115), (45, 710469), (81, 394705), (135, 236823), (405, 78941)]