209567211

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{3739}}^1$

素因数の和:3923

約数の個数: 32

約数和(自身を含む): 340369920

約数和(自身を除く): 130802709

約数列:

[1, 3, 7, 17, 21, 51, 119, 157, 357, 471, 1099, 2669, 3297, 3739, 8007, 11217, 18683, 26173, 56049, 63563, 78519, 190689, 444941, 587023, 1334823, 1761069, 4109161, 9979391, 12327483, 29938173, 69855737, 209567211]

約数ペア:

[(1, 209567211), (3, 69855737), (7, 29938173), (17, 12327483), (21, 9979391), (51, 4109161), (119, 1761069), (157, 1334823), (357, 587023), (471, 444941), (1099, 190689), (2669, 78519), (3297, 63563), (3739, 56049), (8007, 26173), (11217, 18683)]