19646487

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2861}}^1$

素因数の和:2983

約数の個数: 24

約数和(自身を含む): 32741280

約数和(自身を除く): 13094793

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2861, 6867, 8583, 20027, 25749, 60081, 180243, 311849, 935547, 2182943, 2806641, 6548829, 19646487]

約数ペア:

[(1, 19646487), (3, 6548829), (7, 2806641), (9, 2182943), (21, 935547), (63, 311849), (109, 180243), (327, 60081), (763, 25749), (981, 20027), (2289, 8583), (2861, 6867)]