21920008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1117}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 45077760

約数和(自身を除く): 23157752

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1117, 1784, 2234, 2453, 4468, 4906, 8936, 9812, 12287, 19624, 24574, 49148, 98296, 249091, 498182, 996364, 1992728, 2740001, 5480002, 10960004, 21920008]

約数ペア:

[(1, 21920008), (2, 10960004), (4, 5480002), (8, 2740001), (11, 1992728), (22, 996364), (44, 498182), (88, 249091), (223, 98296), (446, 49148), (892, 24574), (1117, 19624), (1784, 12287), (2234, 9812), (2453, 8936), (4468, 4906)]