19521898

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{80669}}^1$

素因数の和:80693

約数の個数: 12

約数和(自身を含む): 32187330

約数和(自身を除く): 12665432

約数列:

[1, 2, 11, 22, 121, 242, 80669, 161338, 887359, 1774718, 9760949, 19521898]

約数ペア:

[(1, 19521898), (2, 9760949), (11, 1774718), (22, 887359), (121, 161338), (242, 80669)]