19999712

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{20161}}^1$

素因数の和:20202

約数の個数: 24

約数和(自身を含む): 40646592

約数和(自身を除く): 20646880

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 20161, 40322, 80644, 161288, 322576, 624991, 645152, 1249982, 2499964, 4999928, 9999856, 19999712]

約数ペア:

[(1, 19999712), (2, 9999856), (4, 4999928), (8, 2499964), (16, 1249982), (31, 645152), (32, 624991), (62, 322576), (124, 161288), (248, 80644), (496, 40322), (992, 20161)]