20945876

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6863}}^1$

素因数の和:6983

約数の個数: 24

約数和(自身を含む): 42282240

約数和(自身を除く): 21336364

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6863, 13726, 27452, 48041, 96082, 192164, 748067, 1496134, 2992268, 5236469, 10472938, 20945876]

約数ペア:

[(1, 20945876), (2, 10472938), (4, 5236469), (7, 2992268), (14, 1496134), (28, 748067), (109, 192164), (218, 96082), (436, 48041), (763, 27452), (1526, 13726), (3052, 6863)]