19206423

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 10446057

約数列:

[1, 3, 9, 27, 43, 71, 129, 213, 233, 387, 639, 699, 1161, 1917, 2097, 3053, 6291, 9159, 10019, 16543, 27477, 30057, 49629, 82431, 90171, 148887, 270513, 446661, 711349, 2134047, 6402141, 19206423]

約数ペア:

[(1, 19206423), (3, 6402141), (9, 2134047), (27, 711349), (43, 446661), (71, 270513), (129, 148887), (213, 90171), (233, 82431), (387, 49629), (639, 30057), (699, 27477), (1161, 16543), (1917, 10019), (2097, 9159), (3053, 6291)]