21613724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11981}}^1$

素因数の和:12037

約数の個数: 24

約数和(自身を含む): 42272496

約数和(自身を除く): 20658772

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11981, 23962, 47924, 131791, 263582, 491221, 527164, 982442, 1964884, 5403431, 10806862, 21613724]

約数ペア:

[(1, 21613724), (2, 10806862), (4, 5403431), (11, 1964884), (22, 982442), (41, 527164), (44, 491221), (82, 263582), (164, 131791), (451, 47924), (902, 23962), (1804, 11981)]