31501431

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 36

約数和(自身を含む): 49959000

約数和(自身を除く): 18457569

約数列:

[1, 3, 9, 13, 39, 117, 139, 149, 169, 417, 447, 507, 1251, 1341, 1521, 1807, 1937, 5421, 5811, 16263, 17433, 20711, 23491, 25181, 62133, 70473, 75543, 186399, 211419, 226629, 269243, 807729, 2423187, 3500159, 10500477, 31501431]

約数ペア:

[(1, 31501431), (3, 10500477), (9, 3500159), (13, 2423187), (39, 807729), (117, 269243), (139, 226629), (149, 211419), (169, 186399), (417, 75543), (447, 70473), (507, 62133), (1251, 25181), (1341, 23491), (1521, 20711), (1807, 17433), (1937, 16263), (5421, 5811)]