18081784

素因数分解:

$2^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 39808800

約数和(自身を除く): 21727016

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 193, 196, 239, 386, 392, 478, 772, 956, 1351, 1544, 1673, 1912, 2702, 3346, 5404, 6692, 9457, 10808, 11711, 13384, 18914, 23422, 37828, 46127, 46844, 75656, 92254, 93688, 184508, 322889, 369016, 645778, 1291556, 2260223, 2583112, 4520446, 9040892, 18081784]

約数ペア:

[(1, 18081784), (2, 9040892), (4, 4520446), (7, 2583112), (8, 2260223), (14, 1291556), (28, 645778), (49, 369016), (56, 322889), (98, 184508), (193, 93688), (196, 92254), (239, 75656), (386, 46844), (392, 46127), (478, 37828), (772, 23422), (956, 18914), (1351, 13384), (1544, 11711), (1673, 10808), (1912, 9457), (2702, 6692), (3346, 5404)]