21738555

素因数分解:

$3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2503}}^1$

素因数の和:2707

約数の個数: 24

約数和(自身を含む): 37890528

約数和(自身を除く): 16151973

約数列:

[1, 3, 5, 9, 15, 45, 193, 579, 965, 1737, 2503, 2895, 7509, 8685, 12515, 22527, 37545, 112635, 483079, 1449237, 2415395, 4347711, 7246185, 21738555]

約数ペア:

[(1, 21738555), (3, 7246185), (5, 4347711), (9, 2415395), (15, 1449237), (45, 483079), (193, 112635), (579, 37545), (965, 22527), (1737, 12515), (2503, 8685), (2895, 7509)]