18946972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1931}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 36352512

約数和(自身を除く): 17405540

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 1931, 2453, 3862, 4906, 7724, 9812, 21241, 42482, 84964, 430613, 861226, 1722452, 4736743, 9473486, 18946972]

約数ペア:

[(1, 18946972), (2, 9473486), (4, 4736743), (11, 1722452), (22, 861226), (44, 430613), (223, 84964), (446, 42482), (892, 21241), (1931, 9812), (2453, 7724), (3862, 4906)]