21339248

素因数分解:

$2^4\times 7^1\times {\mathrm{190529}}^1$

素因数の和:190544

約数の個数: 20

約数和(自身を含む): 47251440

約数和(自身を除く): 25912192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190529, 381058, 762116, 1333703, 1524232, 2667406, 3048464, 5334812, 10669624, 21339248]

約数ペア:

[(1, 21339248), (2, 10669624), (4, 5334812), (7, 3048464), (8, 2667406), (14, 1524232), (16, 1333703), (28, 762116), (56, 381058), (112, 190529)]