21000974045

素因数分解:

$5^1\times {\mathrm{47}}^2\times {\mathrm{1013}}^1\times {\mathrm{1877}}^1$

素因数の和:2989

約数の個数: 24

約数和(自身を含む): 25787922264

約数和(自身を除く): 4786948219

約数列:

[1, 5, 47, 235, 1013, 1877, 2209, 5065, 9385, 11045, 47611, 88219, 238055, 441095, 1901401, 2237717, 4146293, 9507005, 11188585, 20731465, 89365847, 446829235, 4200194809, 21000974045]

約数ペア:

[(1, 21000974045), (5, 4200194809), (47, 446829235), (235, 89365847), (1013, 20731465), (1877, 11188585), (2209, 9507005), (5065, 4146293), (9385, 2237717), (11045, 1901401), (47611, 441095), (88219, 238055)]