21203924

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39857}}^1$

素因数の和:39887

約数の個数: 24

約数和(自身を含む): 44640960

約数和(自身を除く): 23437036

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39857, 79714, 159428, 278999, 557998, 757283, 1115996, 1514566, 3029132, 5300981, 10601962, 21203924]

約数ペア:

[(1, 21203924), (2, 10601962), (4, 5300981), (7, 3029132), (14, 1514566), (19, 1115996), (28, 757283), (38, 557998), (76, 278999), (133, 159428), (266, 79714), (532, 39857)]