21291822

素因数分解:

$2^1\times 3^4\times {\mathrm{131431}}^1$

素因数の和:131445

約数の個数: 20

約数和(自身を含む): 47709816

約数和(自身を除く): 26417994

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131431, 262862, 394293, 788586, 1182879, 2365758, 3548637, 7097274, 10645911, 21291822]

約数ペア:

[(1, 21291822), (2, 10645911), (3, 7097274), (6, 3548637), (9, 2365758), (18, 1182879), (27, 788586), (54, 394293), (81, 262862), (162, 131431)]