20489677

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 22740480

約数和(自身を除く): 2250803

約数列:

[1, 13, 71, 79, 281, 923, 1027, 3653, 5609, 19951, 22199, 72917, 259363, 288587, 1576129, 20489677]

約数ペア:

[(1, 20489677), (13, 1576129), (71, 288587), (79, 259363), (281, 72917), (923, 22199), (1027, 19951), (3653, 5609)]