81137574

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{643949}}^1$

素因数の和:643964

約数の個数: 24

約数和(自身を含む): 200912400

約数和(自身を除く): 119774826

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 643949, 1287898, 1931847, 3863694, 4507643, 5795541, 9015286, 11591082, 13522929, 27045858, 40568787, 81137574]

約数ペア:

[(1, 81137574), (2, 40568787), (3, 27045858), (6, 13522929), (7, 11591082), (9, 9015286), (14, 5795541), (18, 4507643), (21, 3863694), (42, 1931847), (63, 1287898), (126, 643949)]