21069712

素因数分解:

$2^4\times {\mathrm{563}}^1\times {\mathrm{2339}}^1$

素因数の和:2910

約数の個数: 20

約数和(自身を含む): 40912560

約数和(自身を除く): 19842848

約数列:

[1, 2, 4, 8, 16, 563, 1126, 2252, 2339, 4504, 4678, 9008, 9356, 18712, 37424, 1316857, 2633714, 5267428, 10534856, 21069712]

約数ペア:

[(1, 21069712), (2, 10534856), (4, 5267428), (8, 2633714), (16, 1316857), (563, 37424), (1126, 18712), (2252, 9356), (2339, 9008), (4504, 4678)]