20554985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16249}}^1$

素因数の和:16288

約数の個数: 16

約数和(自身を含む): 28080000

約数和(自身を除く): 7525015

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16249, 81245, 178739, 373727, 893695, 1868635, 4110997, 20554985]

約数ペア:

[(1, 20554985), (5, 4110997), (11, 1868635), (23, 893695), (55, 373727), (115, 178739), (253, 81245), (1265, 16249)]