19973916

素因数分解:

$2^2\times 3^2\times {\mathrm{277}}^1\times {\mathrm{2003}}^1$

素因数の和:2290

約数の個数: 36

約数和(自身を含む): 50697192

約数和(自身を除く): 30723276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 277, 554, 831, 1108, 1662, 2003, 2493, 3324, 4006, 4986, 6009, 8012, 9972, 12018, 18027, 24036, 36054, 72108, 554831, 1109662, 1664493, 2219324, 3328986, 4993479, 6657972, 9986958, 19973916]

約数ペア:

[(1, 19973916), (2, 9986958), (3, 6657972), (4, 4993479), (6, 3328986), (9, 2219324), (12, 1664493), (18, 1109662), (36, 554831), (277, 72108), (554, 36054), (831, 24036), (1108, 18027), (1662, 12018), (2003, 9972), (2493, 8012), (3324, 6009), (4006, 4986)]