21438676

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1336

約数の個数: 36

約数和(自身を含む): 44169300

約数和(自身を除く): 22730624

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1229, 1246, 2458, 2492, 4361, 4916, 8603, 8722, 17206, 17444, 34412, 60221, 109381, 120442, 218762, 240884, 437524, 765667, 1531334, 3062668, 5359669, 10719338, 21438676]

約数ペア:

[(1, 21438676), (2, 10719338), (4, 5359669), (7, 3062668), (14, 1531334), (28, 765667), (49, 437524), (89, 240884), (98, 218762), (178, 120442), (196, 109381), (356, 60221), (623, 34412), (1229, 17444), (1246, 17206), (2458, 8722), (2492, 8603), (4361, 4916)]