21880348

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4517}}^1$

素因数の和:4701

約数の個数: 24

約数和(自身を含む): 44023392

約数和(自身を除く): 22143044

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4517, 4844, 9034, 18068, 31619, 63238, 126476, 781441, 1562882, 3125764, 5470087, 10940174, 21880348]

約数ペア:

[(1, 21880348), (2, 10940174), (4, 5470087), (7, 3125764), (14, 1562882), (28, 781441), (173, 126476), (346, 63238), (692, 31619), (1211, 18068), (2422, 9034), (4517, 4844)]