18870888959

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1\times {\mathrm{3761}}^1$

素因数の和:4067

約数の個数: 32

約数和(自身を含む): 21554273664

約数和(自身を除く): 2683384705

約数列:

[1, 13, 23, 97, 173, 299, 1261, 2231, 2249, 3761, 3979, 16781, 29003, 48893, 51727, 86503, 218153, 364817, 385963, 650653, 1124539, 4742621, 5017519, 8390791, 8458489, 14965019, 63113341, 109080283, 194545247, 820473433, 1451606843, 18870888959]

約数ペア:

[(1, 18870888959), (13, 1451606843), (23, 820473433), (97, 194545247), (173, 109080283), (299, 63113341), (1261, 14965019), (2231, 8458489), (2249, 8390791), (3761, 5017519), (3979, 4742621), (16781, 1124539), (29003, 650653), (48893, 385963), (51727, 364817), (86503, 218153)]