20884295

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 25738560

約数和(自身を除く): 4854265

約数列:

[1, 5, 71, 89, 355, 445, 661, 3305, 6319, 31595, 46931, 58829, 234655, 294145, 4176859, 20884295]

約数ペア:

[(1, 20884295), (5, 4176859), (71, 294145), (89, 234655), (355, 58829), (445, 46931), (661, 31595), (3305, 6319)]