18005715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4397}}^1$

素因数の和:4428

約数の個数: 48

約数和(自身を含む): 38420928

約数和(自身を除く): 20415213

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4397, 13191, 21985, 30779, 39573, 57161, 65955, 92337, 153895, 171483, 197865, 277011, 285805, 400127, 461685, 514449, 857415, 1200381, 1385055, 2000635, 2572245, 3601143, 6001905, 18005715]

約数ペア:

[(1, 18005715), (3, 6001905), (5, 3601143), (7, 2572245), (9, 2000635), (13, 1385055), (15, 1200381), (21, 857415), (35, 514449), (39, 461685), (45, 400127), (63, 285805), (65, 277011), (91, 197865), (105, 171483), (117, 153895), (195, 92337), (273, 65955), (315, 57161), (455, 39573), (585, 30779), (819, 21985), (1365, 13191), (4095, 4397)]