2008190961

素因数分解:

$3^4\times 7^2\times {\mathrm{505969}}^1$

素因数の和:505995

約数の個数: 30

約数和(自身を含む): 3489675090

約数和(自身を除く): 1481484129

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 505969, 1517907, 3541783, 4553721, 10625349, 13661163, 24792481, 31876047, 40983489, 74377443, 95628141, 223132329, 286884423, 669396987, 2008190961]

約数ペア:

[(1, 2008190961), (3, 669396987), (7, 286884423), (9, 223132329), (21, 95628141), (27, 74377443), (49, 40983489), (63, 31876047), (81, 24792481), (147, 13661163), (189, 10625349), (441, 4553721), (567, 3541783), (1323, 1517907), (3969, 505969)]