19454985

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{397}}^1$

素因数の和:436

約数の個数: 60

約数和(自身を含む): 38430084

約数和(自身を除く): 18975099

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 135, 165, 297, 363, 397, 405, 495, 605, 891, 1089, 1191, 1485, 1815, 1985, 3267, 3573, 4367, 4455, 5445, 5955, 9801, 10719, 13101, 16335, 17865, 21835, 32157, 39303, 48037, 49005, 53595, 65505, 117909, 144111, 160785, 196515, 240185, 353727, 432333, 589545, 720555, 1296999, 1768635, 2161665, 3890997, 6484995, 19454985]

約数ペア:

[(1, 19454985), (3, 6484995), (5, 3890997), (9, 2161665), (11, 1768635), (15, 1296999), (27, 720555), (33, 589545), (45, 432333), (55, 353727), (81, 240185), (99, 196515), (121, 160785), (135, 144111), (165, 117909), (297, 65505), (363, 53595), (397, 49005), (405, 48037), (495, 39303), (605, 32157), (891, 21835), (1089, 17865), (1191, 16335), (1485, 13101), (1815, 10719), (1985, 9801), (3267, 5955), (3573, 5445), (4367, 4455)]