19809806

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7793}}^1$

素因数の和:7867

約数の個数: 16

約数和(自身を含む): 31425408

約数和(自身を除く): 11615602

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 7793, 15586, 241583, 319513, 483166, 639026, 9904903, 19809806]

約数ペア:

[(1, 19809806), (2, 9904903), (31, 639026), (41, 483166), (62, 319513), (82, 241583), (1271, 15586), (2542, 7793)]