21921326

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 41135760

約数和(自身を除く): 19214434

約数列:

[1, 2, 7, 14, 19, 38, 49, 61, 98, 122, 133, 193, 266, 386, 427, 854, 931, 1159, 1351, 1862, 2318, 2702, 2989, 3667, 5978, 7334, 8113, 9457, 11773, 16226, 18914, 23546, 25669, 51338, 56791, 82411, 113582, 164822, 179683, 223687, 359366, 447374, 576877, 1153754, 1565809, 3131618, 10960663, 21921326]

約数ペア:

[(1, 21921326), (2, 10960663), (7, 3131618), (14, 1565809), (19, 1153754), (38, 576877), (49, 447374), (61, 359366), (98, 223687), (122, 179683), (133, 164822), (193, 113582), (266, 82411), (386, 56791), (427, 51338), (854, 25669), (931, 23546), (1159, 18914), (1351, 16226), (1862, 11773), (2318, 9457), (2702, 8113), (2989, 7334), (3667, 5978)]