20684872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1931}}^1$

素因数の和:2053

約数の個数: 32

約数和(自身を含む): 42194880

約数和(自身を除く): 21510008

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 206, 412, 824, 1339, 1931, 2678, 3862, 5356, 7724, 10712, 15448, 25103, 50206, 100412, 198893, 200824, 397786, 795572, 1591144, 2585609, 5171218, 10342436, 20684872]

約数ペア:

[(1, 20684872), (2, 10342436), (4, 5171218), (8, 2585609), (13, 1591144), (26, 795572), (52, 397786), (103, 200824), (104, 198893), (206, 100412), (412, 50206), (824, 25103), (1339, 15448), (1931, 10712), (2678, 7724), (3862, 5356)]