20723551009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1226899}}^1$

素因数の和:1227052

約数の個数: 16

約数和(自身を含む): 25126912000

約数和(自身を除く): 4403360991

約数列:

[1, 7, 19, 127, 133, 889, 2413, 16891, 1226899, 8588293, 23311081, 155816173, 163177567, 1090713211, 2960507287, 20723551009]

約数ペア:

[(1, 20723551009), (7, 2960507287), (19, 1090713211), (127, 163177567), (133, 155816173), (889, 23311081), (2413, 8588293), (16891, 1226899)]