39998959

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 55480320

約数和(自身を除く): 15481361

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 1001, 1289, 2387, 2821, 4433, 9023, 14179, 16757, 31031, 39959, 99253, 117299, 184327, 279713, 439549, 519467, 1290289, 3076843, 3636269, 5714137, 39998959]

約数ペア:

[(1, 39998959), (7, 5714137), (11, 3636269), (13, 3076843), (31, 1290289), (77, 519467), (91, 439549), (143, 279713), (217, 184327), (341, 117299), (403, 99253), (1001, 39959), (1289, 31031), (2387, 16757), (2821, 14179), (4433, 9023)]