21385668

素因数分解:

$2^2\times 3^1\times {\mathrm{1782139}}^1$

素因数の和:1782146

約数の個数: 12

約数和(自身を含む): 49899920

約数和(自身を除く): 28514252

約数列:

[1, 2, 3, 4, 6, 12, 1782139, 3564278, 5346417, 7128556, 10692834, 21385668]

約数ペア:

[(1, 21385668), (2, 10692834), (3, 7128556), (4, 5346417), (6, 3564278), (12, 1782139)]