28681807

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 36771840

約数和(自身を除く): 8090033

約数列:

[1, 7, 11, 49, 77, 127, 419, 539, 889, 1397, 2933, 4609, 6223, 9779, 20531, 32263, 53213, 68453, 225841, 372491, 585343, 2607437, 4097401, 28681807]

約数ペア:

[(1, 28681807), (7, 4097401), (11, 2607437), (49, 585343), (77, 372491), (127, 225841), (419, 68453), (539, 53213), (889, 32263), (1397, 20531), (2933, 9779), (4609, 6223)]