31939817

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 48

約数和(自身を含む): 43920000

約数和(自身を除く): 11980183

約数列:

[1, 7, 13, 19, 29, 49, 91, 133, 169, 203, 247, 343, 377, 551, 637, 931, 1183, 1421, 1729, 2639, 3211, 3857, 4459, 4901, 6517, 7163, 8281, 9947, 12103, 18473, 22477, 26999, 34307, 50141, 57967, 84721, 93119, 129311, 157339, 188993, 240149, 350987, 651833, 1101373, 1681043, 2456909, 4562831, 31939817]

約数ペア:

[(1, 31939817), (7, 4562831), (13, 2456909), (19, 1681043), (29, 1101373), (49, 651833), (91, 350987), (133, 240149), (169, 188993), (203, 157339), (247, 129311), (343, 93119), (377, 84721), (551, 57967), (637, 50141), (931, 34307), (1183, 26999), (1421, 22477), (1729, 18473), (2639, 12103), (3211, 9947), (3857, 8281), (4459, 7163), (4901, 6517)]