21033994220

素因数分解:

$2^2\times 5^1\times {\mathrm{38821}}^1\times {\mathrm{27091}}^1$

素因数の和:65921

約数の個数: 24

約数和(自身を含む): 44174156208

約数和(自身を除く): 23140161988

約数列:

[1, 2, 4, 5, 10, 20, 27091, 38821, 54182, 77642, 108364, 135455, 155284, 194105, 270910, 388210, 541820, 776420, 1051699711, 2103399422, 4206798844, 5258498555, 10516997110, 21033994220]

約数ペア:

[(1, 21033994220), (2, 10516997110), (4, 5258498555), (5, 4206798844), (10, 2103399422), (20, 1051699711), (27091, 776420), (38821, 541820), (54182, 388210), (77642, 270910), (108364, 194105), (135455, 155284)]