20763964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{953}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 39266640

約数和(自身を除く): 18502676

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 953, 1676, 1906, 3812, 5447, 10894, 12389, 21788, 24778, 49556, 399307, 798614, 1597228, 5190991, 10381982, 20763964]

約数ペア:

[(1, 20763964), (2, 10381982), (4, 5190991), (13, 1597228), (26, 798614), (52, 399307), (419, 49556), (838, 24778), (953, 21788), (1676, 12389), (1906, 10894), (3812, 5447)]