20471612

素因数分解:

$2^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 42873600

約数和(自身を除く): 22401988

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 343, 347, 602, 686, 694, 1204, 1372, 1388, 2107, 2429, 4214, 4858, 8428, 9716, 14749, 14921, 17003, 29498, 29842, 34006, 58996, 59684, 68012, 104447, 119021, 208894, 238042, 417788, 476084, 731129, 1462258, 2924516, 5117903, 10235806, 20471612]

約数ペア:

[(1, 20471612), (2, 10235806), (4, 5117903), (7, 2924516), (14, 1462258), (28, 731129), (43, 476084), (49, 417788), (86, 238042), (98, 208894), (172, 119021), (196, 104447), (301, 68012), (343, 59684), (347, 58996), (602, 34006), (686, 29842), (694, 29498), (1204, 17003), (1372, 14921), (1388, 14749), (2107, 9716), (2429, 8428), (4214, 4858)]