31538997

素因数分解:

$3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 56179200

約数和(自身を除く): 24640203

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 93, 147, 189, 217, 279, 441, 651, 769, 837, 1323, 1519, 1953, 2307, 4557, 5383, 5859, 6921, 13671, 16149, 20763, 23839, 37681, 41013, 48447, 71517, 113043, 145341, 166873, 214551, 339129, 500619, 643653, 1017387, 1168111, 1501857, 3504333, 4505571, 10512999, 31538997]

約数ペア:

[(1, 31538997), (3, 10512999), (7, 4505571), (9, 3504333), (21, 1501857), (27, 1168111), (31, 1017387), (49, 643653), (63, 500619), (93, 339129), (147, 214551), (189, 166873), (217, 145341), (279, 113043), (441, 71517), (651, 48447), (769, 41013), (837, 37681), (1323, 23839), (1519, 20763), (1953, 16149), (2307, 13671), (4557, 6921), (5383, 5859)]