20728235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3659}}^1$

素因数の和:3778

約数の個数: 16

約数和(自身を含む): 27406080

約数和(自身を除く): 6677845

約数列:

[1, 5, 11, 55, 103, 515, 1133, 3659, 5665, 18295, 40249, 201245, 376877, 1884385, 4145647, 20728235]

約数ペア:

[(1, 20728235), (5, 4145647), (11, 1884385), (55, 376877), (103, 201245), (515, 40249), (1133, 18295), (3659, 5665)]