21163318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8513}}^1$

素因数の和:8639

約数の個数: 16

約数和(自身を含む): 34941456

約数和(自身を除く): 13778138

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8513, 17026, 93643, 187286, 961969, 1923938, 10581659, 21163318]

約数ペア:

[(1, 21163318), (2, 10581659), (11, 1923938), (22, 961969), (113, 187286), (226, 93643), (1243, 17026), (2486, 8513)]