20748117

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10217643

約数列:

[1, 3, 13, 39, 59, 71, 127, 177, 213, 381, 767, 923, 1651, 2301, 2769, 4189, 4953, 7493, 9017, 12567, 22479, 27051, 54457, 97409, 117221, 163371, 292227, 351663, 532003, 1596009, 6916039, 20748117]

約数ペア:

[(1, 20748117), (3, 6916039), (13, 1596009), (39, 532003), (59, 351663), (71, 292227), (127, 163371), (177, 117221), (213, 97409), (381, 54457), (767, 27051), (923, 22479), (1651, 12567), (2301, 9017), (2769, 7493), (4189, 4953)]