31997446

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{691}}^1$

素因数の和:856

約数の個数: 24

約数和(自身を含む): 52427304

約数和(自身を除く): 20429858

約数列:

[1, 2, 13, 26, 137, 169, 274, 338, 691, 1382, 1781, 3562, 8983, 17966, 23153, 46306, 94667, 116779, 189334, 233558, 1230671, 2461342, 15998723, 31997446]

約数ペア:

[(1, 31997446), (2, 15998723), (13, 2461342), (26, 1230671), (137, 233558), (169, 189334), (274, 116779), (338, 94667), (691, 46306), (1382, 23153), (1781, 17966), (3562, 8983)]