21236608

素因数分解:

$2^7\times {\mathrm{251}}^1\times {\mathrm{661}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 42540120

約数和(自身を除く): 21303512

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 251, 502, 661, 1004, 1322, 2008, 2644, 4016, 5288, 8032, 10576, 16064, 21152, 32128, 42304, 84608, 165911, 331822, 663644, 1327288, 2654576, 5309152, 10618304, 21236608]

約数ペア:

[(1, 21236608), (2, 10618304), (4, 5309152), (8, 2654576), (16, 1327288), (32, 663644), (64, 331822), (128, 165911), (251, 84608), (502, 42304), (661, 32128), (1004, 21152), (1322, 16064), (2008, 10576), (2644, 8032), (4016, 5288)]