7788081

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 12672000

約数和(自身を除く): 4883919

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 149, 393, 399, 447, 917, 1043, 2489, 2751, 2831, 3129, 7467, 8493, 17423, 19519, 19817, 52269, 58557, 59451, 136633, 370861, 409899, 1112583, 2596027, 7788081]

約数ペア:

[(1, 7788081), (3, 2596027), (7, 1112583), (19, 409899), (21, 370861), (57, 136633), (131, 59451), (133, 58557), (149, 52269), (393, 19817), (399, 19519), (447, 17423), (917, 8493), (1043, 7467), (2489, 3129), (2751, 2831)]