20293869

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 29177280

約数和(自身を除く): 8883411

約数列:

[1, 3, 17, 51, 89, 263, 267, 289, 789, 867, 1513, 4471, 4539, 13413, 23407, 25721, 70221, 76007, 77163, 228021, 397919, 1193757, 6764623, 20293869]

約数ペア:

[(1, 20293869), (3, 6764623), (17, 1193757), (51, 397919), (89, 228021), (263, 77163), (267, 76007), (289, 70221), (789, 25721), (867, 23407), (1513, 13413), (4471, 4539)]