21231852

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 52926720

約数和(自身を除く): 31694868

約数列:

[1, 2, 3, 4, 6, 12, 23, 43, 46, 69, 86, 92, 129, 138, 172, 258, 276, 516, 989, 1789, 1978, 2967, 3578, 3956, 5367, 5934, 7156, 10734, 11868, 21468, 41147, 76927, 82294, 123441, 153854, 164588, 230781, 246882, 307708, 461562, 493764, 923124, 1769321, 3538642, 5307963, 7077284, 10615926, 21231852]

約数ペア:

[(1, 21231852), (2, 10615926), (3, 7077284), (4, 5307963), (6, 3538642), (12, 1769321), (23, 923124), (43, 493764), (46, 461562), (69, 307708), (86, 246882), (92, 230781), (129, 164588), (138, 153854), (172, 123441), (258, 82294), (276, 76927), (516, 41147), (989, 21468), (1789, 11868), (1978, 10734), (2967, 7156), (3578, 5934), (3956, 5367)]