20804916858

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{28279}}^1$

素因数の和:28523

約数の個数: 64

約数和(自身を含む): 46326712320

約数和(自身を除く): 25521795462

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 142, 157, 213, 314, 426, 471, 781, 942, 1562, 1727, 2343, 3454, 4686, 5181, 10362, 11147, 22294, 28279, 33441, 56558, 66882, 84837, 122617, 169674, 245234, 311069, 367851, 622138, 735702, 933207, 1866414, 2007809, 4015618, 4439803, 6023427, 8879606, 12046854, 13319409, 22085899, 26638818, 44171798, 48837833, 66257697, 97675666, 132515394, 146513499, 293026998, 315226013, 630452026, 945678039, 1891356078, 3467486143, 6934972286, 10402458429, 20804916858]

約数ペア:

[(1, 20804916858), (2, 10402458429), (3, 6934972286), (6, 3467486143), (11, 1891356078), (22, 945678039), (33, 630452026), (66, 315226013), (71, 293026998), (142, 146513499), (157, 132515394), (213, 97675666), (314, 66257697), (426, 48837833), (471, 44171798), (781, 26638818), (942, 22085899), (1562, 13319409), (1727, 12046854), (2343, 8879606), (3454, 6023427), (4686, 4439803), (5181, 4015618), (10362, 2007809), (11147, 1866414), (22294, 933207), (28279, 735702), (33441, 622138), (56558, 367851), (66882, 311069), (84837, 245234), (122617, 169674)]