20854379

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2269}}^1$

素因数の和:2390

約数の個数: 16

約数和(自身を含む): 25932480

約数和(自身を除く): 5078101

約数列:

[1, 7, 13, 91, 101, 707, 1313, 2269, 9191, 15883, 29497, 206479, 229169, 1604183, 2979197, 20854379]

約数ペア:

[(1, 20854379), (7, 2979197), (13, 1604183), (91, 229169), (101, 206479), (707, 29497), (1313, 15883), (2269, 9191)]