20278327537

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{293}}^1\times {\mathrm{449}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 22404211200

約数和(自身を除く): 2125883663

約数列:

[1, 13, 71, 167, 293, 449, 923, 2171, 3809, 5837, 11857, 20803, 31879, 48931, 74983, 131557, 154141, 270439, 414427, 636103, 974779, 1710241, 3474101, 5323793, 9340547, 21970019, 45163313, 69209309, 121427111, 285610247, 1559871349, 20278327537]

約数ペア:

[(1, 20278327537), (13, 1559871349), (71, 285610247), (167, 121427111), (293, 69209309), (449, 45163313), (923, 21970019), (2171, 9340547), (3809, 5323793), (5837, 3474101), (11857, 1710241), (20803, 974779), (31879, 636103), (48931, 414427), (74983, 270439), (131557, 154141)]