20163381

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 12011979

約数列:

[1, 3, 7, 21, 29, 87, 113, 203, 293, 339, 609, 791, 879, 2051, 2373, 3277, 6153, 8497, 9831, 22939, 25491, 33109, 59479, 68817, 99327, 178437, 231763, 695289, 960161, 2880483, 6721127, 20163381]

約数ペア:

[(1, 20163381), (3, 6721127), (7, 2880483), (21, 960161), (29, 695289), (87, 231763), (113, 178437), (203, 99327), (293, 68817), (339, 59479), (609, 33109), (791, 25491), (879, 22939), (2051, 9831), (2373, 8497), (3277, 6153)]