19913661

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8287}}^1$

素因数の和:8385

約数の個数: 16

約数和(自身を含む): 29836800

約数和(自身を除く): 9923139

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8287, 24861, 74583, 223749, 737543, 2212629, 6637887, 19913661]

約数ペア:

[(1, 19913661), (3, 6637887), (9, 2212629), (27, 737543), (89, 223749), (267, 74583), (801, 24861), (2403, 8287)]