56371581

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20809}}^1$

素因数の和:20865

約数の個数: 24

約数和(自身を含む): 95226560

約数和(自身を除く): 38854979

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 20809, 62427, 145663, 187281, 436989, 894787, 1310967, 2684361, 6263509, 8053083, 18790527, 56371581]

約数ペア:

[(1, 56371581), (3, 18790527), (7, 8053083), (9, 6263509), (21, 2684361), (43, 1310967), (63, 894787), (129, 436989), (301, 187281), (387, 145663), (903, 62427), (2709, 20809)]