18702021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{499}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 27804000

約数和(自身を除く): 9101979

約数列:

[1, 3, 13, 31, 39, 93, 403, 499, 961, 1209, 1497, 2883, 6487, 12493, 15469, 19461, 37479, 46407, 201097, 479539, 603291, 1438617, 6234007, 18702021]

約数ペア:

[(1, 18702021), (3, 6234007), (13, 1438617), (31, 603291), (39, 479539), (93, 201097), (403, 46407), (499, 37479), (961, 19461), (1209, 15469), (1497, 12493), (2883, 6487)]