18289271

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1$

素因数の和:204

約数の個数: 32

約数和(自身を含む): 24923136

約数和(自身を除く): 6633865

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 151, 847, 1001, 1057, 1331, 1573, 1661, 1963, 9317, 11011, 11627, 13741, 17303, 18271, 21593, 121121, 127897, 151151, 200981, 237523, 1406867, 1662661, 2612753, 18289271]

約数ペア:

[(1, 18289271), (7, 2612753), (11, 1662661), (13, 1406867), (77, 237523), (91, 200981), (121, 151151), (143, 127897), (151, 121121), (847, 21593), (1001, 18271), (1057, 17303), (1331, 13741), (1573, 11627), (1661, 11011), (1963, 9317)]