21277999010

素因数分解:

$2^1\times 5^1\times {\mathrm{2127799901}}^1$

素因数の和:2127799908

約数の個数: 8

約数和(自身を含む): 38300398236

約数和(自身を除く): 17022399226

約数列:

[1, 2, 5, 10, 2127799901, 4255599802, 10638999505, 21277999010]

約数ペア:

[(1, 21277999010), (2, 10638999505), (5, 4255599802), (10, 2127799901)]