19961451

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 31625280

約数和(自身を除く): 11663829

約数列:

[1, 3, 9, 17, 27, 51, 153, 157, 277, 459, 471, 831, 1413, 2493, 2669, 4239, 4709, 7479, 8007, 14127, 24021, 42381, 43489, 72063, 127143, 130467, 391401, 739313, 1174203, 2217939, 6653817, 19961451]

約数ペア:

[(1, 19961451), (3, 6653817), (9, 2217939), (17, 1174203), (27, 739313), (51, 391401), (153, 130467), (157, 127143), (277, 72063), (459, 43489), (471, 42381), (831, 24021), (1413, 14127), (2493, 8007), (2669, 7479), (4239, 4709)]