18975645

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 35817600

約数和(自身を除く): 16841955

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 163, 195, 199, 489, 585, 597, 815, 995, 1467, 1791, 2119, 2445, 2587, 2985, 6357, 7335, 7761, 8955, 10595, 12935, 19071, 23283, 31785, 32437, 38805, 95355, 97311, 116415, 162185, 291933, 421681, 486555, 1265043, 1459665, 2108405, 3795129, 6325215, 18975645]

約数ペア:

[(1, 18975645), (3, 6325215), (5, 3795129), (9, 2108405), (13, 1459665), (15, 1265043), (39, 486555), (45, 421681), (65, 291933), (117, 162185), (163, 116415), (195, 97311), (199, 95355), (489, 38805), (585, 32437), (597, 31785), (815, 23283), (995, 19071), (1467, 12935), (1791, 10595), (2119, 8955), (2445, 7761), (2587, 7335), (2985, 6357)]