20900446

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 38273472

約数和(自身を除く): 17373026

約数列:

[1, 2, 7, 14, 17, 34, 119, 137, 238, 274, 641, 959, 1282, 1918, 2329, 4487, 4658, 8974, 10897, 16303, 21794, 32606, 76279, 87817, 152558, 175634, 614719, 1229438, 1492889, 2985778, 10450223, 20900446]

約数ペア:

[(1, 20900446), (2, 10450223), (7, 2985778), (14, 1492889), (17, 1229438), (34, 614719), (119, 175634), (137, 152558), (238, 87817), (274, 76279), (641, 32606), (959, 21794), (1282, 16303), (1918, 10897), (2329, 8974), (4487, 4658)]