31638971

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 42470400

約数和(自身を除く): 10831429

約数列:

[1, 7, 13, 19, 29, 91, 133, 203, 247, 377, 551, 631, 1729, 2639, 3857, 4417, 7163, 8203, 11989, 18299, 50141, 57421, 83923, 128093, 155857, 237887, 347681, 1090999, 1665209, 2433767, 4519853, 31638971]

約数ペア:

[(1, 31638971), (7, 4519853), (13, 2433767), (19, 1665209), (29, 1090999), (91, 347681), (133, 237887), (203, 155857), (247, 128093), (377, 83923), (551, 57421), (631, 50141), (1729, 18299), (2639, 11989), (3857, 8203), (4417, 7163)]