209520639

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{23539}}^1$

素因数の和:23611

約数の個数: 24

約数和(自身を含む): 323157120

約数和(自身を除く): 113636481

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 8901, 23539, 70617, 211851, 541397, 1012177, 1624191, 3036531, 4872573, 9109593, 23280071, 69840213, 209520639]

約数ペア:

[(1, 209520639), (3, 69840213), (9, 23280071), (23, 9109593), (43, 4872573), (69, 3036531), (129, 1624191), (207, 1012177), (387, 541397), (989, 211851), (2967, 70617), (8901, 23539)]