21000507212

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{141895319}}^1$

素因数の和:141895360

約数の個数: 12

約数和(自身を含む): 37744155120

約数和(自身を除く): 16743647908

約数列:

[1, 2, 4, 37, 74, 148, 141895319, 283790638, 567581276, 5250126803, 10500253606, 21000507212]

約数ペア:

[(1, 21000507212), (2, 10500253606), (4, 5250126803), (37, 567581276), (74, 283790638), (148, 141895319)]