21194768

素因数分解:

$2^4\times 7^1\times {\mathrm{189239}}^1$

素因数の和:189254

約数の個数: 20

約数和(自身を含む): 46931520

約数和(自身を除く): 25736752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189239, 378478, 756956, 1324673, 1513912, 2649346, 3027824, 5298692, 10597384, 21194768]

約数ペア:

[(1, 21194768), (2, 10597384), (4, 5298692), (7, 3027824), (8, 2649346), (14, 1513912), (16, 1324673), (28, 756956), (56, 378478), (112, 189239)]