20201493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 9990123

約数列:

[1, 3, 13, 39, 47, 103, 107, 141, 309, 321, 611, 1339, 1391, 1833, 4017, 4173, 4841, 5029, 11021, 14523, 15087, 33063, 62933, 65377, 143273, 188799, 196131, 429819, 517987, 1553961, 6733831, 20201493]

約数ペア:

[(1, 20201493), (3, 6733831), (13, 1553961), (39, 517987), (47, 429819), (103, 196131), (107, 188799), (141, 143273), (309, 65377), (321, 62933), (611, 33063), (1339, 15087), (1391, 14523), (1833, 11021), (4017, 5029), (4173, 4841)]