4405891

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 5359360

約数和(自身を除く): 953469

約数列:

[1, 7, 19, 133, 157, 211, 1099, 1477, 2983, 4009, 20881, 28063, 33127, 231889, 629413, 4405891]

約数ペア:

[(1, 4405891), (7, 629413), (19, 231889), (133, 33127), (157, 28063), (211, 20881), (1099, 4009), (1477, 2983)]