31051719

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 49969920

約数和(自身を除く): 18918201

約数列:

[1, 3, 9, 19, 41, 43, 57, 103, 123, 129, 171, 309, 369, 387, 779, 817, 927, 1763, 1957, 2337, 2451, 4223, 4429, 5289, 5871, 7011, 7353, 12669, 13287, 15867, 17613, 33497, 38007, 39861, 80237, 84151, 100491, 181589, 240711, 252453, 301473, 544767, 722133, 757359, 1634301, 3450191, 10350573, 31051719]

約数ペア:

[(1, 31051719), (3, 10350573), (9, 3450191), (19, 1634301), (41, 757359), (43, 722133), (57, 544767), (103, 301473), (123, 252453), (129, 240711), (171, 181589), (309, 100491), (369, 84151), (387, 80237), (779, 39861), (817, 38007), (927, 33497), (1763, 17613), (1957, 15867), (2337, 13287), (2451, 12669), (4223, 7353), (4429, 7011), (5289, 5871)]