215565987

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19259}}^1$

素因数の和:19323

約数の個数: 32

約数和(自身を含む): 362396160

約数和(自身を除く): 146830173

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 3731, 11193, 19259, 57777, 134813, 250367, 404439, 751101, 789619, 1752569, 2368857, 5257707, 5527333, 10265047, 16581999, 30795141, 71855329, 215565987]

約数ペア:

[(1, 215565987), (3, 71855329), (7, 30795141), (13, 16581999), (21, 10265047), (39, 5527333), (41, 5257707), (91, 2368857), (123, 1752569), (273, 789619), (287, 751101), (533, 404439), (861, 250367), (1599, 134813), (3731, 57777), (11193, 19259)]