20641696

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15733}}^1$

素因数の和:15784

約数の個数: 24

約数和(自身を含む): 41632164

約数和(自身を除く): 20990468

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15733, 31466, 62932, 125864, 251728, 503456, 645053, 1290106, 2580212, 5160424, 10320848, 20641696]

約数ペア:

[(1, 20641696), (2, 10320848), (4, 5160424), (8, 2580212), (16, 1290106), (32, 645053), (41, 503456), (82, 251728), (164, 125864), (328, 62932), (656, 31466), (1312, 15733)]