21979496

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31104664

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1151, 1364, 1736, 2302, 2387, 2728, 4604, 4774, 8057, 9208, 9548, 12661, 16114, 19096, 25322, 32228, 35681, 50644, 64456, 71362, 88627, 101288, 142724, 177254, 249767, 285448, 354508, 392491, 499534, 709016, 784982, 999068, 1569964, 1998136, 2747437, 3139928, 5494874, 10989748, 21979496]

約数ペア:

[(1, 21979496), (2, 10989748), (4, 5494874), (7, 3139928), (8, 2747437), (11, 1998136), (14, 1569964), (22, 999068), (28, 784982), (31, 709016), (44, 499534), (56, 392491), (62, 354508), (77, 285448), (88, 249767), (124, 177254), (154, 142724), (217, 101288), (248, 88627), (308, 71362), (341, 64456), (434, 50644), (616, 35681), (682, 32228), (868, 25322), (1151, 19096), (1364, 16114), (1736, 12661), (2302, 9548), (2387, 9208), (2728, 8057), (4604, 4774)]