20311995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 15353925

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 257, 479, 771, 1285, 1437, 2395, 2827, 3855, 5269, 7185, 8481, 14135, 15807, 26345, 42405, 79035, 123103, 369309, 615515, 1354133, 1846545, 4062399, 6770665, 20311995]

約数ペア:

[(1, 20311995), (3, 6770665), (5, 4062399), (11, 1846545), (15, 1354133), (33, 615515), (55, 369309), (165, 123103), (257, 79035), (479, 42405), (771, 26345), (1285, 15807), (1437, 14135), (2395, 8481), (2827, 7185), (3855, 5269)]