20726919

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{929}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 31240560

約数和(自身を除く): 10513641

約数列:

[1, 3, 9, 37, 67, 111, 201, 333, 603, 929, 2479, 2787, 7437, 8361, 22311, 34373, 62243, 103119, 186729, 309357, 560187, 2302991, 6908973, 20726919]

約数ペア:

[(1, 20726919), (3, 6908973), (9, 2302991), (37, 560187), (67, 309357), (111, 186729), (201, 103119), (333, 62243), (603, 34373), (929, 22311), (2479, 8361), (2787, 7437)]