21046564

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2971}}^1$

素因数の和:3016

約数の個数: 48

約数和(自身を含む): 47932416

約数和(自身を除く): 26885852

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 253, 308, 322, 506, 644, 1012, 1771, 2971, 3542, 5942, 7084, 11884, 20797, 32681, 41594, 65362, 68333, 83188, 130724, 136666, 228767, 273332, 457534, 478331, 751663, 915068, 956662, 1503326, 1913324, 3006652, 5261641, 10523282, 21046564]

約数ペア:

[(1, 21046564), (2, 10523282), (4, 5261641), (7, 3006652), (11, 1913324), (14, 1503326), (22, 956662), (23, 915068), (28, 751663), (44, 478331), (46, 457534), (77, 273332), (92, 228767), (154, 136666), (161, 130724), (253, 83188), (308, 68333), (322, 65362), (506, 41594), (644, 32681), (1012, 20797), (1771, 11884), (2971, 7084), (3542, 5942)]