28137993

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 44974080

約数和(自身を除く): 16836087

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 127, 169, 247, 299, 381, 437, 507, 741, 897, 1311, 1651, 2413, 2921, 3211, 3887, 4953, 5681, 7239, 8763, 9633, 11661, 17043, 21463, 31369, 37973, 55499, 64389, 73853, 94107, 113919, 166497, 221559, 407797, 493649, 721487, 1223391, 1480947, 2164461, 9379331, 28137993]

約数ペア:

[(1, 28137993), (3, 9379331), (13, 2164461), (19, 1480947), (23, 1223391), (39, 721487), (57, 493649), (69, 407797), (127, 221559), (169, 166497), (247, 113919), (299, 94107), (381, 73853), (437, 64389), (507, 55499), (741, 37973), (897, 31369), (1311, 21463), (1651, 17043), (2413, 11661), (2921, 9633), (3211, 8763), (3887, 7239), (4953, 5681)]