21286908

素因数分解:

$2^2\times 3^3\times {\mathrm{197101}}^1$

素因数の和:197114

約数の個数: 24

約数和(自身を含む): 55188560

約数和(自身を除く): 33901652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 197101, 394202, 591303, 788404, 1182606, 1773909, 2365212, 3547818, 5321727, 7095636, 10643454, 21286908]

約数ペア:

[(1, 21286908), (2, 10643454), (3, 7095636), (4, 5321727), (6, 3547818), (9, 2365212), (12, 1773909), (18, 1182606), (27, 788404), (36, 591303), (54, 394202), (108, 197101)]