18998084

素因数分解:

$2^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 20582716

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 227, 244, 343, 427, 454, 686, 854, 908, 1372, 1589, 1708, 2989, 3178, 5978, 6356, 11123, 11956, 13847, 20923, 22246, 27694, 41846, 44492, 55388, 77861, 83692, 96929, 155722, 193858, 311444, 387716, 678503, 1357006, 2714012, 4749521, 9499042, 18998084]

約数ペア:

[(1, 18998084), (2, 9499042), (4, 4749521), (7, 2714012), (14, 1357006), (28, 678503), (49, 387716), (61, 311444), (98, 193858), (122, 155722), (196, 96929), (227, 83692), (244, 77861), (343, 55388), (427, 44492), (454, 41846), (686, 27694), (854, 22246), (908, 20923), (1372, 13847), (1589, 11956), (1708, 11123), (2989, 6356), (3178, 5978)]