39899979

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1973}}^1$

素因数の和:2096

約数の個数: 32

約数和(自身を含む): 68221440

約数和(自身を除く): 28321461

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 1973, 2247, 2889, 5919, 6741, 13811, 17757, 20223, 41433, 53271, 124299, 211111, 372897, 633333, 1477777, 1899999, 4433331, 5699997, 13299993, 39899979]

約数ペア:

[(1, 39899979), (3, 13299993), (7, 5699997), (9, 4433331), (21, 1899999), (27, 1477777), (63, 633333), (107, 372897), (189, 211111), (321, 124299), (749, 53271), (963, 41433), (1973, 20223), (2247, 17757), (2889, 13811), (5919, 6741)]