19807434

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 44464992

約数和(自身を除く): 24657558

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 157, 163, 258, 314, 326, 387, 471, 489, 774, 942, 978, 1413, 1467, 2826, 2934, 6751, 7009, 13502, 14018, 20253, 21027, 25591, 40506, 42054, 51182, 60759, 63081, 76773, 121518, 126162, 153546, 230319, 460638, 1100413, 2200826, 3301239, 6602478, 9903717, 19807434]

約数ペア:

[(1, 19807434), (2, 9903717), (3, 6602478), (6, 3301239), (9, 2200826), (18, 1100413), (43, 460638), (86, 230319), (129, 153546), (157, 126162), (163, 121518), (258, 76773), (314, 63081), (326, 60759), (387, 51182), (471, 42054), (489, 40506), (774, 25591), (942, 21027), (978, 20253), (1413, 14018), (1467, 13502), (2826, 7009), (2934, 6751)]