18667215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3119}}^1$

素因数の和:3156

約数の個数: 48

約数和(自身を含む): 38937600

約数和(自身を除く): 20270385

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3119, 5985, 9357, 15595, 21833, 28071, 46785, 59261, 65499, 109165, 140355, 177783, 196497, 296305, 327495, 414827, 533349, 888915, 982485, 1244481, 2074135, 2666745, 3733443, 6222405, 18667215]

約数ペア:

[(1, 18667215), (3, 6222405), (5, 3733443), (7, 2666745), (9, 2074135), (15, 1244481), (19, 982485), (21, 888915), (35, 533349), (45, 414827), (57, 327495), (63, 296305), (95, 196497), (105, 177783), (133, 140355), (171, 109165), (285, 65499), (315, 59261), (399, 46785), (665, 28071), (855, 21833), (1197, 15595), (1995, 9357), (3119, 5985)]