21994328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3761}}^1$

素因数の和:3827

約数の個数: 32

約数和(自身を含む): 44692560

約数和(自身を除く): 22698232

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3761, 5848, 7522, 15044, 30088, 63937, 127874, 161723, 255748, 323446, 511496, 646892, 1293784, 2749291, 5498582, 10997164, 21994328]

約数ペア:

[(1, 21994328), (2, 10997164), (4, 5498582), (8, 2749291), (17, 1293784), (34, 646892), (43, 511496), (68, 323446), (86, 255748), (136, 161723), (172, 127874), (344, 63937), (731, 30088), (1462, 15044), (2924, 7522), (3761, 5848)]