31511948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 64421280

約数和(自身を除く): 32909332

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 559, 731, 829, 884, 1118, 1462, 1658, 2236, 2924, 3316, 9503, 10777, 14093, 19006, 21554, 28186, 35647, 38012, 43108, 56372, 71294, 142588, 183209, 366418, 463411, 605999, 732836, 926822, 1211998, 1853644, 2423996, 7877987, 15755974, 31511948]

約数ペア:

[(1, 31511948), (2, 15755974), (4, 7877987), (13, 2423996), (17, 1853644), (26, 1211998), (34, 926822), (43, 732836), (52, 605999), (68, 463411), (86, 366418), (172, 183209), (221, 142588), (442, 71294), (559, 56372), (731, 43108), (829, 38012), (884, 35647), (1118, 28186), (1462, 21554), (1658, 19006), (2236, 14093), (2924, 10777), (3316, 9503)]