20781605377

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{4679}}^1$

素因数の和:4933

約数の個数: 32

約数和(自身を含む): 23549460480

約数和(自身を除く): 2767855103

約数列:

[1, 13, 31, 103, 107, 403, 1339, 1391, 3193, 3317, 4679, 11021, 41509, 43121, 60827, 143273, 145049, 341651, 481937, 500653, 1885637, 4441463, 6265181, 6508489, 14940047, 15520243, 51567259, 194220611, 201763159, 670374367, 1598585029, 20781605377]

約数ペア:

[(1, 20781605377), (13, 1598585029), (31, 670374367), (103, 201763159), (107, 194220611), (403, 51567259), (1339, 15520243), (1391, 14940047), (3193, 6508489), (3317, 6265181), (4679, 4441463), (11021, 1885637), (41509, 500653), (43121, 481937), (60827, 341651), (143273, 145049)]