15171819

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 22767360

約数和(自身を除く): 7595541

約数列:

[1, 3, 13, 39, 43, 83, 109, 129, 249, 327, 559, 1079, 1417, 1677, 3237, 3569, 4251, 4687, 9047, 10707, 14061, 27141, 46397, 60931, 117611, 139191, 182793, 352833, 389021, 1167063, 5057273, 15171819]

約数ペア:

[(1, 15171819), (3, 5057273), (13, 1167063), (39, 389021), (43, 352833), (83, 182793), (109, 139191), (129, 117611), (249, 60931), (327, 46397), (559, 27141), (1079, 14061), (1417, 10707), (1677, 9047), (3237, 4687), (3569, 4251)]