638567889

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1\times {\mathrm{367}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 915171840

約数和(自身を除く): 276603951

約数列:

[1, 3, 17, 51, 109, 313, 327, 367, 939, 1101, 1853, 5321, 5559, 6239, 15963, 18717, 34117, 40003, 102351, 114871, 120009, 344613, 579989, 680051, 1739967, 1952807, 2040153, 5858421, 12520939, 37562817, 212855963, 638567889]

約数ペア:

[(1, 638567889), (3, 212855963), (17, 37562817), (51, 12520939), (109, 5858421), (313, 2040153), (327, 1952807), (367, 1739967), (939, 680051), (1101, 579989), (1853, 344613), (5321, 120009), (5559, 114871), (6239, 102351), (15963, 40003), (18717, 34117)]