19986369

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{797}}^1$

素因数の和:1456

約数の個数: 16

約数和(自身を含む): 28779072

約数和(自身を除く): 8792703

約数列:

[1, 3, 13, 39, 643, 797, 1929, 2391, 8359, 10361, 25077, 31083, 512471, 1537413, 6662123, 19986369]

約数ペア:

[(1, 19986369), (3, 6662123), (13, 1537413), (39, 512471), (643, 31083), (797, 25077), (1929, 10361), (2391, 8359)]