78687999

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1381}}^1$

素因数の和:1887

約数の個数: 24

約数和(自身を含む): 122743712

約数和(自身を除く): 44055713

約数列:

[1, 3, 9, 13, 39, 117, 487, 1381, 1461, 4143, 4383, 6331, 12429, 17953, 18993, 53859, 56979, 161577, 672547, 2017641, 6052923, 8743111, 26229333, 78687999]

約数ペア:

[(1, 78687999), (3, 26229333), (9, 8743111), (13, 6052923), (39, 2017641), (117, 672547), (487, 161577), (1381, 56979), (1461, 53859), (4143, 18993), (4383, 17953), (6331, 12429)]