20897255

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4649}}^1$

素因数の和:4714

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 5886745

約数列:

[1, 5, 29, 31, 145, 155, 899, 4495, 4649, 23245, 134821, 144119, 674105, 720595, 4179451, 20897255]

約数ペア:

[(1, 20897255), (5, 4179451), (29, 720595), (31, 674105), (145, 144119), (155, 134821), (899, 23245), (4495, 4649)]