211580212

素因数分解:

$2^2\times {\mathrm{389}}^1\times {\mathrm{135977}}^1$

素因数の和:136370

約数の個数: 12

約数和(自身を含む): 371219940

約数和(自身を除く): 159639728

約数列:

[1, 2, 4, 389, 778, 1556, 135977, 271954, 543908, 52895053, 105790106, 211580212]

約数ペア:

[(1, 211580212), (2, 105790106), (4, 52895053), (389, 543908), (778, 271954), (1556, 135977)]