21326697

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{673}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 35328384

約数和(自身を除く): 14001687

約数列:

[1, 3, 7, 9, 21, 63, 503, 673, 1509, 2019, 3521, 4527, 4711, 6057, 10563, 14133, 31689, 42399, 338519, 1015557, 2369633, 3046671, 7108899, 21326697]

約数ペア:

[(1, 21326697), (3, 7108899), (7, 3046671), (9, 2369633), (21, 1015557), (63, 338519), (503, 42399), (673, 31689), (1509, 14133), (2019, 10563), (3521, 6057), (4527, 4711)]