211271290

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{21319}}^1$

素因数の和:22317

約数の個数: 16

約数和(自身を含む): 380689920

約数和(自身を除く): 169418630

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 21319, 42638, 106595, 213190, 21127129, 42254258, 105635645, 211271290]

約数ペア:

[(1, 211271290), (2, 105635645), (5, 42254258), (10, 21127129), (991, 213190), (1982, 106595), (4955, 42638), (9910, 21319)]