31211278

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 54774720

約数和(自身を除く): 23563442

約数列:

[1, 2, 7, 14, 109, 113, 181, 218, 226, 362, 763, 791, 1267, 1526, 1582, 2534, 12317, 19729, 20453, 24634, 39458, 40906, 86219, 138103, 143171, 172438, 276206, 286342, 2229377, 4458754, 15605639, 31211278]

約数ペア:

[(1, 31211278), (2, 15605639), (7, 4458754), (14, 2229377), (109, 286342), (113, 276206), (181, 172438), (218, 143171), (226, 138103), (362, 86219), (763, 40906), (791, 39458), (1267, 24634), (1526, 20453), (1582, 19729), (2534, 12317)]