21035707

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1063}}^1$

素因数の和:1338

約数の個数: 16

約数和(自身を含む): 26353152

約数和(自身を除く): 5317445

約数列:

[1, 7, 11, 77, 257, 1063, 1799, 2827, 7441, 11693, 19789, 81851, 273191, 1912337, 3005101, 21035707]

約数ペア:

[(1, 21035707), (7, 3005101), (11, 1912337), (77, 273191), (257, 81851), (1063, 19789), (1799, 11693), (2827, 7441)]