20449221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{2089}}^1$

素因数の和:2356

約数の個数: 16

約数和(自身を含む): 29494080

約数和(自身を除く): 9044859

約数列:

[1, 3, 13, 39, 251, 753, 2089, 3263, 6267, 9789, 27157, 81471, 524339, 1573017, 6816407, 20449221]

約数ペア:

[(1, 20449221), (3, 6816407), (13, 1573017), (39, 524339), (251, 81471), (753, 27157), (2089, 9789), (3263, 6267)]