21000724756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3643429}}^1$

素因数の和:3643575

約数の個数: 24

約数和(自身を含む): 40398351840

約数和(自身を除く): 19397627084

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 5764, 3643429, 7286858, 14573716, 40077719, 80155438, 160310876, 477289199, 954578398, 1909156796, 5250181189, 10500362378, 21000724756]

約数ペア:

[(1, 21000724756), (2, 10500362378), (4, 5250181189), (11, 1909156796), (22, 954578398), (44, 477289199), (131, 160310876), (262, 80155438), (524, 40077719), (1441, 14573716), (2882, 7286858), (5764, 3643429)]