21916335

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4441}}^1$

素因数の和:4503

約数の個数: 32

約数和(自身を含む): 40937472

約数和(自身を除く): 19021137

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4441, 4935, 13323, 22205, 31087, 66615, 93261, 155435, 208727, 466305, 626181, 1043635, 1461089, 3130905, 4383267, 7305445, 21916335]

約数ペア:

[(1, 21916335), (3, 7305445), (5, 4383267), (7, 3130905), (15, 1461089), (21, 1043635), (35, 626181), (47, 466305), (105, 208727), (141, 155435), (235, 93261), (329, 66615), (705, 31087), (987, 22205), (1645, 13323), (4441, 4935)]