31609851

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 24838149

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 139, 147, 221, 273, 343, 357, 417, 637, 663, 833, 973, 1029, 1547, 1807, 1911, 2363, 2499, 2919, 4459, 4641, 5421, 5831, 6811, 7089, 10829, 12649, 13377, 16541, 17493, 20433, 30719, 32487, 37947, 47677, 49623, 75803, 88543, 92157, 115787, 143031, 215033, 227409, 265629, 347361, 619801, 645099, 810509, 1505231, 1859403, 2431527, 4515693, 10536617, 31609851]

約数ペア:

[(1, 31609851), (3, 10536617), (7, 4515693), (13, 2431527), (17, 1859403), (21, 1505231), (39, 810509), (49, 645099), (51, 619801), (91, 347361), (119, 265629), (139, 227409), (147, 215033), (221, 143031), (273, 115787), (343, 92157), (357, 88543), (417, 75803), (637, 49623), (663, 47677), (833, 37947), (973, 32487), (1029, 30719), (1547, 20433), (1807, 17493), (1911, 16541), (2363, 13377), (2499, 12649), (2919, 10829), (4459, 7089), (4641, 6811), (5421, 5831)]