21744284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1283}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 40266240

約数和(自身を除く): 18521956

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1283, 2566, 4237, 5132, 8474, 16948, 24377, 48754, 97508, 286109, 572218, 1144436, 5436071, 10872142, 21744284]

約数ペア:

[(1, 21744284), (2, 10872142), (4, 5436071), (19, 1144436), (38, 572218), (76, 286109), (223, 97508), (446, 48754), (892, 24377), (1283, 16948), (2566, 8474), (4237, 5132)]