20218871805

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{964871}}^1$

素因数の和:965017

約数の個数: 32

約数和(自身を含む): 35569041408

約数和(自身を除く): 15350169603

約数列:

[1, 3, 5, 11, 15, 33, 55, 127, 165, 381, 635, 1397, 1905, 4191, 6985, 20955, 964871, 2894613, 4824355, 10613581, 14473065, 31840743, 53067905, 122538617, 159203715, 367615851, 612693085, 1347924787, 1838079255, 4043774361, 6739623935, 20218871805]

約数ペア:

[(1, 20218871805), (3, 6739623935), (5, 4043774361), (11, 1838079255), (15, 1347924787), (33, 612693085), (55, 367615851), (127, 159203715), (165, 122538617), (381, 53067905), (635, 31840743), (1397, 14473065), (1905, 10613581), (4191, 4824355), (6985, 2894613), (20955, 964871)]