21454408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2161}}^1$

素因数の和:2257

約数の個数: 32

約数和(自身を含む): 43196760

約数和(自身を除く): 21742352

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2161, 2482, 4322, 4964, 8644, 9928, 17288, 36737, 73474, 146948, 157753, 293896, 315506, 631012, 1262024, 2681801, 5363602, 10727204, 21454408]

約数ペア:

[(1, 21454408), (2, 10727204), (4, 5363602), (8, 2681801), (17, 1262024), (34, 631012), (68, 315506), (73, 293896), (136, 157753), (146, 146948), (292, 73474), (584, 36737), (1241, 17288), (2161, 9928), (2482, 8644), (4322, 4964)]