19978468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{3719}}^1$

素因数の和:3819

約数の個数: 24

約数和(自身を含む): 37497600

約数和(自身を除く): 17519132

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 3719, 5372, 7438, 14876, 63223, 126446, 252892, 293801, 587602, 1175204, 4994617, 9989234, 19978468]

約数ペア:

[(1, 19978468), (2, 9989234), (4, 4994617), (17, 1175204), (34, 587602), (68, 293801), (79, 252892), (158, 126446), (316, 63223), (1343, 14876), (2686, 7438), (3719, 5372)]