9919805

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 14582880

約数和(自身を除く): 4663075

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 2131, 4655, 10655, 14917, 40489, 74585, 104419, 202445, 283423, 522095, 1417115, 1983961, 9919805]

約数ペア:

[(1, 9919805), (5, 1983961), (7, 1417115), (19, 522095), (35, 283423), (49, 202445), (95, 104419), (133, 74585), (245, 40489), (665, 14917), (931, 10655), (2131, 4655)]