28520349

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3499}}^1$

素因数の和:3545

約数の個数: 32

約数和(自身を含む): 47040000

約数和(自身を除く): 18519651

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2717, 3499, 8151, 10497, 38489, 45487, 66481, 115467, 136461, 199443, 500357, 731291, 864253, 1501071, 2193873, 2592759, 9506783, 28520349]

約数ペア:

[(1, 28520349), (3, 9506783), (11, 2592759), (13, 2193873), (19, 1501071), (33, 864253), (39, 731291), (57, 500357), (143, 199443), (209, 136461), (247, 115467), (429, 66481), (627, 45487), (741, 38489), (2717, 10497), (3499, 8151)]