21986032

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80831}}^1$

素因数の和:80856

約数の個数: 20

約数和(自身を含む): 45104256

約数和(自身を除く): 23118224

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80831, 161662, 323324, 646648, 1293296, 1374127, 2748254, 5496508, 10993016, 21986032]

約数ペア:

[(1, 21986032), (2, 10993016), (4, 5496508), (8, 2748254), (16, 1374127), (17, 1293296), (34, 646648), (68, 323324), (136, 161662), (272, 80831)]