21004016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{911}}^1$

素因数の和:1061

約数の個数: 40

約数和(自身を含む): 44782848

約数和(自身を除く): 23778832

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 911, 1048, 1441, 1822, 2096, 2882, 3644, 5764, 7288, 10021, 11528, 14576, 20042, 23056, 40084, 80168, 119341, 160336, 238682, 477364, 954728, 1312751, 1909456, 2625502, 5251004, 10502008, 21004016]

約数ペア:

[(1, 21004016), (2, 10502008), (4, 5251004), (8, 2625502), (11, 1909456), (16, 1312751), (22, 954728), (44, 477364), (88, 238682), (131, 160336), (176, 119341), (262, 80168), (524, 40084), (911, 23056), (1048, 20042), (1441, 14576), (1822, 11528), (2096, 10021), (2882, 7288), (3644, 5764)]