157220469

素因数分解:

$3^2\times 7^2\times {\mathrm{356509}}^1$

素因数の和:356529

約数の個数: 18

約数和(自身を含む): 264173910

約数和(自身を除く): 106953441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 356509, 1069527, 2495563, 3208581, 7486689, 17468941, 22460067, 52406823, 157220469]

約数ペア:

[(1, 157220469), (3, 52406823), (7, 22460067), (9, 17468941), (21, 7486689), (49, 3208581), (63, 2495563), (147, 1069527), (441, 356509)]