28317933

素因数分解:

$3^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:586

約数の個数: 36

約数和(自身を含む): 48001980

約数和(自身を除く): 19684047

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 157, 409, 441, 471, 1099, 1227, 1413, 2863, 3297, 3681, 7693, 8589, 9891, 20041, 23079, 25767, 60123, 64213, 69237, 180369, 192639, 449491, 577917, 1348473, 3146437, 4045419, 9439311, 28317933]

約数ペア:

[(1, 28317933), (3, 9439311), (7, 4045419), (9, 3146437), (21, 1348473), (49, 577917), (63, 449491), (147, 192639), (157, 180369), (409, 69237), (441, 64213), (471, 60123), (1099, 25767), (1227, 23079), (1413, 20041), (2863, 9891), (3297, 8589), (3681, 7693)]