19440248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{641}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 38828160

約数和(自身を除く): 19387912

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 223, 446, 641, 892, 1282, 1784, 2564, 3791, 5128, 7582, 10897, 15164, 21794, 30328, 43588, 87176, 142943, 285886, 571772, 1143544, 2430031, 4860062, 9720124, 19440248]

約数ペア:

[(1, 19440248), (2, 9720124), (4, 4860062), (8, 2430031), (17, 1143544), (34, 571772), (68, 285886), (136, 142943), (223, 87176), (446, 43588), (641, 30328), (892, 21794), (1282, 15164), (1784, 10897), (2564, 7582), (3791, 5128)]