19540983

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2917}}^1$

素因数の和:2967

約数の個数: 32

約数和(自身を含む): 33615360

約数和(自身を除く): 14074377

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 2917, 6699, 8751, 20419, 32087, 61257, 84593, 96261, 224609, 253779, 592151, 673827, 930523, 1776453, 2791569, 6513661, 19540983]

約数ペア:

[(1, 19540983), (3, 6513661), (7, 2791569), (11, 1776453), (21, 930523), (29, 673827), (33, 592151), (77, 253779), (87, 224609), (203, 96261), (231, 84593), (319, 61257), (609, 32087), (957, 20419), (2233, 8751), (2917, 6699)]