21080494078

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1566857}}^1$

素因数の和:1566928

約数の個数: 24

約数和(自身を含む): 37341359856

約数和(自身を除く): 16260865778

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 961, 1922, 6727, 13454, 1566857, 3133714, 10967999, 21935998, 48572567, 97145134, 340007969, 680015938, 1505749577, 3011499154, 10540247039, 21080494078]

約数ペア:

[(1, 21080494078), (2, 10540247039), (7, 3011499154), (14, 1505749577), (31, 680015938), (62, 340007969), (217, 97145134), (434, 48572567), (961, 21935998), (1922, 10967999), (6727, 3133714), (13454, 1566857)]