21891726

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2477}}^1$

素因数の和:2976

約数の個数: 24

約数和(自身を含む): 47547864

約数和(自身を除く): 25656138

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2477, 2946, 4419, 4954, 7431, 8838, 14862, 22293, 44586, 1216207, 2432414, 3648621, 7297242, 10945863, 21891726]

約数ペア:

[(1, 21891726), (2, 10945863), (3, 7297242), (6, 3648621), (9, 2432414), (18, 1216207), (491, 44586), (982, 22293), (1473, 14862), (2477, 8838), (2946, 7431), (4419, 4954)]