64180879

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20981}}^1$

素因数の和:21030

約数の個数: 16

約数和(自身を含む): 80570880

約数和(自身を除く): 16390001

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 20981, 146867, 398639, 482563, 2790473, 3377941, 9168697, 64180879]

約数ペア:

[(1, 64180879), (7, 9168697), (19, 3377941), (23, 2790473), (133, 482563), (161, 398639), (437, 146867), (3059, 20981)]