20427704

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 22664296

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 121, 188, 242, 376, 449, 484, 517, 898, 968, 1034, 1796, 2068, 3592, 4136, 4939, 5687, 9878, 11374, 19756, 21103, 22748, 39512, 42206, 45496, 54329, 84412, 108658, 168824, 217316, 232133, 434632, 464266, 928532, 1857064, 2553463, 5106926, 10213852, 20427704]

約数ペア:

[(1, 20427704), (2, 10213852), (4, 5106926), (8, 2553463), (11, 1857064), (22, 928532), (44, 464266), (47, 434632), (88, 232133), (94, 217316), (121, 168824), (188, 108658), (242, 84412), (376, 54329), (449, 45496), (484, 42206), (517, 39512), (898, 22748), (968, 21103), (1034, 19756), (1796, 11374), (2068, 9878), (3592, 5687), (4136, 4939)]