20172081

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10620879

約数列:

[1, 3, 17, 23, 29, 51, 69, 87, 391, 493, 593, 667, 1173, 1479, 1779, 2001, 10081, 11339, 13639, 17197, 30243, 34017, 40917, 51591, 231863, 292349, 395531, 695589, 877047, 1186593, 6724027, 20172081]

約数ペア:

[(1, 20172081), (3, 6724027), (17, 1186593), (23, 877047), (29, 695589), (51, 395531), (69, 292349), (87, 231863), (391, 51591), (493, 40917), (593, 34017), (667, 30243), (1173, 17197), (1479, 13639), (1779, 11339), (2001, 10081)]