20682914

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 39253248

約数和(自身を除く): 18570334

約数列:

[1, 2, 7, 14, 17, 34, 43, 47, 86, 94, 119, 238, 301, 329, 602, 658, 731, 799, 1462, 1598, 1849, 2021, 3698, 4042, 5117, 5593, 10234, 11186, 12943, 14147, 25886, 28294, 31433, 34357, 62866, 68714, 86903, 173806, 220031, 240499, 440062, 480998, 608321, 1216642, 1477351, 2954702, 10341457, 20682914]

約数ペア:

[(1, 20682914), (2, 10341457), (7, 2954702), (14, 1477351), (17, 1216642), (34, 608321), (43, 480998), (47, 440062), (86, 240499), (94, 220031), (119, 173806), (238, 86903), (301, 68714), (329, 62866), (602, 34357), (658, 31433), (731, 28294), (799, 25886), (1462, 14147), (1598, 12943), (1849, 11186), (2021, 10234), (3698, 5593), (4042, 5117)]