20936872

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 23304248

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 473, 484, 503, 946, 968, 1006, 1892, 2012, 3784, 4024, 5203, 5533, 10406, 11066, 20812, 21629, 22132, 41624, 43258, 44264, 60863, 86516, 121726, 173032, 237919, 243452, 475838, 486904, 951676, 1903352, 2617109, 5234218, 10468436, 20936872]

約数ペア:

[(1, 20936872), (2, 10468436), (4, 5234218), (8, 2617109), (11, 1903352), (22, 951676), (43, 486904), (44, 475838), (86, 243452), (88, 237919), (121, 173032), (172, 121726), (242, 86516), (344, 60863), (473, 44264), (484, 43258), (503, 41624), (946, 22132), (968, 21629), (1006, 20812), (1892, 11066), (2012, 10406), (3784, 5533), (4024, 5203)]