21302673

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 34332672

約数和(自身を除く): 13029999

約数列:

[1, 3, 7, 21, 31, 43, 93, 129, 217, 301, 651, 761, 903, 1333, 2283, 3999, 5327, 9331, 15981, 23591, 27993, 32723, 70773, 98169, 165137, 229061, 495411, 687183, 1014413, 3043239, 7100891, 21302673]

約数ペア:

[(1, 21302673), (3, 7100891), (7, 3043239), (21, 1014413), (31, 687183), (43, 495411), (93, 229061), (129, 165137), (217, 98169), (301, 70773), (651, 32723), (761, 27993), (903, 23591), (1333, 15981), (2283, 9331), (3999, 5327)]