1281511

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 24

約数和(自身を含む): 1723680

約数和(自身を除く): 442169

約数列:

[1, 7, 11, 17, 77, 89, 119, 121, 187, 623, 847, 979, 1309, 1513, 2057, 6853, 10591, 10769, 14399, 16643, 75383, 116501, 183073, 1281511]

約数ペア:

[(1, 1281511), (7, 183073), (11, 116501), (17, 75383), (77, 16643), (89, 14399), (119, 10769), (121, 10591), (187, 6853), (623, 2057), (847, 1513), (979, 1309)]