31800699

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 57108480

約数和(自身を除く): 25307781

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 589, 651, 857, 1197, 1767, 1953, 2571, 4123, 5301, 5999, 7713, 12369, 16283, 17997, 26567, 37107, 48849, 53991, 79701, 113981, 146547, 185969, 239103, 341943, 504773, 557907, 1025829, 1514319, 1673721, 3533411, 4542957, 10600233, 31800699]

約数ペア:

[(1, 31800699), (3, 10600233), (7, 4542957), (9, 3533411), (19, 1673721), (21, 1514319), (31, 1025829), (57, 557907), (63, 504773), (93, 341943), (133, 239103), (171, 185969), (217, 146547), (279, 113981), (399, 79701), (589, 53991), (651, 48849), (857, 37107), (1197, 26567), (1767, 17997), (1953, 16283), (2571, 12369), (4123, 7713), (5301, 5999)]