13381753

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 17860836

約数和(自身を除く): 4479083

約数列:

[1, 7, 11, 37, 49, 61, 77, 121, 259, 407, 427, 539, 671, 847, 1813, 2257, 2849, 2989, 4477, 4697, 5929, 7381, 15799, 19943, 24827, 31339, 32879, 51667, 110593, 173789, 219373, 273097, 361669, 1216523, 1911679, 13381753]

約数ペア:

[(1, 13381753), (7, 1911679), (11, 1216523), (37, 361669), (49, 273097), (61, 219373), (77, 173789), (121, 110593), (259, 51667), (407, 32879), (427, 31339), (539, 24827), (671, 19943), (847, 15799), (1813, 7381), (2257, 5929), (2849, 4697), (2989, 4477)]