21140004

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{773}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 51492672

約数和(自身を除く): 30352668

約数列:

[1, 2, 3, 4, 6, 12, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 516, 636, 773, 1546, 2279, 2319, 3092, 4558, 4638, 6837, 9116, 9276, 13674, 27348, 33239, 40969, 66478, 81938, 99717, 122907, 132956, 163876, 199434, 245814, 398868, 491628, 1761667, 3523334, 5285001, 7046668, 10570002, 21140004]

約数ペア:

[(1, 21140004), (2, 10570002), (3, 7046668), (4, 5285001), (6, 3523334), (12, 1761667), (43, 491628), (53, 398868), (86, 245814), (106, 199434), (129, 163876), (159, 132956), (172, 122907), (212, 99717), (258, 81938), (318, 66478), (516, 40969), (636, 33239), (773, 27348), (1546, 13674), (2279, 9276), (2319, 9116), (3092, 6837), (4558, 4638)]