28246491

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 54

約数和(自身を含む): 51529140

約数和(自身を除く): 23282649

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 169, 273, 379, 441, 507, 637, 819, 1137, 1183, 1521, 1911, 2653, 3411, 3549, 4927, 5733, 7959, 8281, 10647, 14781, 18571, 23877, 24843, 34489, 44343, 55713, 64051, 74529, 103467, 167139, 192153, 241423, 310401, 448357, 576459, 724269, 1345071, 2172807, 3138499, 4035213, 9415497, 28246491]

約数ペア:

[(1, 28246491), (3, 9415497), (7, 4035213), (9, 3138499), (13, 2172807), (21, 1345071), (39, 724269), (49, 576459), (63, 448357), (91, 310401), (117, 241423), (147, 192153), (169, 167139), (273, 103467), (379, 74529), (441, 64051), (507, 55713), (637, 44343), (819, 34489), (1137, 24843), (1183, 23877), (1521, 18571), (1911, 14781), (2653, 10647), (3411, 8281), (3549, 7959), (4927, 5733)]