21919010

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 40772592

約数和(自身を除く): 18853582

約数列:

[1, 2, 5, 10, 41, 82, 193, 205, 277, 386, 410, 554, 965, 1385, 1930, 2770, 7913, 11357, 15826, 22714, 39565, 53461, 56785, 79130, 106922, 113570, 267305, 534610, 2191901, 4383802, 10959505, 21919010]

約数ペア:

[(1, 21919010), (2, 10959505), (5, 4383802), (10, 2191901), (41, 534610), (82, 267305), (193, 113570), (205, 106922), (277, 79130), (386, 56785), (410, 53461), (554, 39565), (965, 22714), (1385, 15826), (1930, 11357), (2770, 7913)]