20163578981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1\times {\mathrm{1171}}^1$

素因数の和:1666

約数の個数: 64

約数和(自身を含む): 27344916480

約数和(自身を除く): 7181337499

約数列:

[1, 7, 13, 19, 23, 91, 133, 161, 247, 299, 433, 437, 1171, 1729, 2093, 3031, 3059, 5629, 5681, 8197, 8227, 9959, 15223, 22249, 26933, 39403, 39767, 57589, 69713, 106561, 106951, 129467, 155743, 188531, 189221, 289237, 350129, 507043, 511727, 748657, 906269, 1324547, 2024659, 2450903, 2459873, 3549301, 3582089, 6591559, 6652451, 9633817, 11661989, 17219111, 46140913, 46567157, 67436719, 81633923, 125239621, 151605857, 221577791, 876677347, 1061240999, 1551044537, 2880511283, 20163578981]

約数ペア:

[(1, 20163578981), (7, 2880511283), (13, 1551044537), (19, 1061240999), (23, 876677347), (91, 221577791), (133, 151605857), (161, 125239621), (247, 81633923), (299, 67436719), (433, 46567157), (437, 46140913), (1171, 17219111), (1729, 11661989), (2093, 9633817), (3031, 6652451), (3059, 6591559), (5629, 3582089), (5681, 3549301), (8197, 2459873), (8227, 2450903), (9959, 2024659), (15223, 1324547), (22249, 906269), (26933, 748657), (39403, 511727), (39767, 507043), (57589, 350129), (69713, 289237), (106561, 189221), (106951, 188531), (129467, 155743)]