21104972

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39671}}^1$

素因数の和:39701

約数の個数: 24

約数和(自身を含む): 44432640

約数和(自身を除く): 23327668

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39671, 79342, 158684, 277697, 555394, 753749, 1110788, 1507498, 3014996, 5276243, 10552486, 21104972]

約数ペア:

[(1, 21104972), (2, 10552486), (4, 5276243), (7, 3014996), (14, 1507498), (19, 1110788), (28, 753749), (38, 555394), (76, 277697), (133, 158684), (266, 79342), (532, 39671)]