20508453

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10501}}^1$

素因数の和:10545

約数の個数: 24

約数和(自身を含む): 34950656

約数和(自身を除く): 14442203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10501, 31503, 73507, 94509, 220521, 325531, 661563, 976593, 2278717, 2929779, 6836151, 20508453]

約数ペア:

[(1, 20508453), (3, 6836151), (7, 2929779), (9, 2278717), (21, 976593), (31, 661563), (63, 325531), (93, 220521), (217, 94509), (279, 73507), (651, 31503), (1953, 10501)]