21051164097

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{1439}}^1$

素因数の和:1902

約数の個数: 48

約数和(自身を含む): 31550238720

約数和(自身を除く): 10499074623

約数列:

[1, 3, 9, 37, 111, 197, 223, 333, 591, 669, 1439, 1773, 2007, 4317, 7289, 8251, 12951, 21867, 24753, 43931, 53243, 65601, 74259, 131793, 159729, 283483, 320897, 395379, 479187, 850449, 962691, 1625447, 2551347, 2888073, 4876341, 10488871, 11873189, 14629023, 31466613, 35619567, 63216709, 94399839, 106858701, 189650127, 568950381, 2339018233, 7017054699, 21051164097]

約数ペア:

[(1, 21051164097), (3, 7017054699), (9, 2339018233), (37, 568950381), (111, 189650127), (197, 106858701), (223, 94399839), (333, 63216709), (591, 35619567), (669, 31466613), (1439, 14629023), (1773, 11873189), (2007, 10488871), (4317, 4876341), (7289, 2888073), (8251, 2551347), (12951, 1625447), (21867, 962691), (24753, 850449), (43931, 479187), (53243, 395379), (65601, 320897), (74259, 283483), (131793, 159729)]