21140308

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2281}}^1$

素因数の和:2623

約数の個数: 24

約数和(自身を含む): 42426944

約数和(自身を除く): 21286636

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 2281, 2317, 4562, 4634, 9124, 9268, 15967, 31934, 63868, 755011, 1510022, 3020044, 5285077, 10570154, 21140308]

約数ペア:

[(1, 21140308), (2, 10570154), (4, 5285077), (7, 3020044), (14, 1510022), (28, 755011), (331, 63868), (662, 31934), (1324, 15967), (2281, 9268), (2317, 9124), (4562, 4634)]