20840494

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2141}}^1$

素因数の和:2331

約数の個数: 16

約数和(自身を含む): 32489856

約数和(自身を除く): 11649362

約数列:

[1, 2, 31, 62, 157, 314, 2141, 4282, 4867, 9734, 66371, 132742, 336137, 672274, 10420247, 20840494]

約数ペア:

[(1, 20840494), (2, 10420247), (31, 672274), (62, 336137), (157, 132742), (314, 66371), (2141, 9734), (4282, 4867)]