21996722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 37658304

約数和(自身を除く): 15661582

約数列:

[1, 2, 11, 22, 37, 61, 74, 122, 407, 443, 671, 814, 886, 1342, 2257, 4514, 4873, 9746, 16391, 24827, 27023, 32782, 49654, 54046, 180301, 297253, 360602, 594506, 999851, 1999702, 10998361, 21996722]

約数ペア:

[(1, 21996722), (2, 10998361), (11, 1999702), (22, 999851), (37, 594506), (61, 360602), (74, 297253), (122, 180301), (407, 54046), (443, 49654), (671, 32782), (814, 27023), (886, 24827), (1342, 16391), (2257, 9746), (4514, 4873)]