20390973

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 29914080

約数和(自身を除く): 9523107

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 811, 867, 1479, 2433, 8381, 13787, 23519, 25143, 41361, 70557, 234379, 399823, 703137, 1199469, 6796991, 20390973]

約数ペア:

[(1, 20390973), (3, 6796991), (17, 1199469), (29, 703137), (51, 399823), (87, 234379), (289, 70557), (493, 41361), (811, 25143), (867, 23519), (1479, 13787), (2433, 8381)]