21134660

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1303}}^1$

素因数の和:2123

約数の個数: 24

約数和(自身を含む): 44471616

約数和(自身を除く): 23336956

約数列:

[1, 2, 4, 5, 10, 20, 811, 1303, 1622, 2606, 3244, 4055, 5212, 6515, 8110, 13030, 16220, 26060, 1056733, 2113466, 4226932, 5283665, 10567330, 21134660]

約数ペア:

[(1, 21134660), (2, 10567330), (4, 5283665), (5, 4226932), (10, 2113466), (20, 1056733), (811, 26060), (1303, 16220), (1622, 13030), (2606, 8110), (3244, 6515), (4055, 5212)]