20523668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2971}}^1$

素因数の和:3143

約数の個数: 24

約数和(自身を含む): 39444384

約数和(自身を除く): 18920716

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 2971, 3454, 5942, 6908, 11884, 32681, 65362, 130724, 466447, 932894, 1865788, 5130917, 10261834, 20523668]

約数ペア:

[(1, 20523668), (2, 10261834), (4, 5130917), (11, 1865788), (22, 932894), (44, 466447), (157, 130724), (314, 65362), (628, 32681), (1727, 11884), (2971, 6908), (3454, 5942)]