19897528

素因数分解:

$2^3\times 7^2\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 43789680

約数和(自身を除く): 23892152

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 193, 196, 263, 386, 392, 526, 772, 1052, 1351, 1544, 1841, 2104, 2702, 3682, 5404, 7364, 9457, 10808, 12887, 14728, 18914, 25774, 37828, 50759, 51548, 75656, 101518, 103096, 203036, 355313, 406072, 710626, 1421252, 2487191, 2842504, 4974382, 9948764, 19897528]

約数ペア:

[(1, 19897528), (2, 9948764), (4, 4974382), (7, 2842504), (8, 2487191), (14, 1421252), (28, 710626), (49, 406072), (56, 355313), (98, 203036), (193, 103096), (196, 101518), (263, 75656), (386, 51548), (392, 50759), (526, 37828), (772, 25774), (1052, 18914), (1351, 14728), (1544, 12887), (1841, 10808), (2104, 9457), (2702, 7364), (3682, 5404)]