20899687556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2130013}}^1$

素因数の和:2130251

約数の個数: 24

約数和(自身を含む): 40078343424

約数和(自身を除く): 19178655868

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2453, 4906, 9812, 2130013, 4260026, 8520052, 23430143, 46860286, 93720572, 474992899, 949985798, 1899971596, 5224921889, 10449843778, 20899687556]

約数ペア:

[(1, 20899687556), (2, 10449843778), (4, 5224921889), (11, 1899971596), (22, 949985798), (44, 474992899), (223, 93720572), (446, 46860286), (892, 23430143), (2453, 8520052), (4906, 4260026), (9812, 2130013)]