21378204

素因数分解:

$2^2\times 3^2\times {\mathrm{593839}}^1$

素因数の和:593849

約数の個数: 18

約数和(自身を含む): 54039440

約数和(自身を除く): 32661236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 593839, 1187678, 1781517, 2375356, 3563034, 5344551, 7126068, 10689102, 21378204]

約数ペア:

[(1, 21378204), (2, 10689102), (3, 7126068), (4, 5344551), (6, 3563034), (9, 2375356), (12, 1781517), (18, 1187678), (36, 593839)]