7821513

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 14002560

約数和(自身を除く): 6181047

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 67, 109, 119, 153, 201, 327, 357, 469, 603, 763, 981, 1071, 1139, 1407, 1853, 2289, 3417, 4221, 5559, 6867, 7303, 7973, 10251, 12971, 16677, 21909, 23919, 38913, 51121, 65727, 71757, 116739, 124151, 153363, 372453, 460089, 869057, 1117359, 2607171, 7821513]

約数ペア:

[(1, 7821513), (3, 2607171), (7, 1117359), (9, 869057), (17, 460089), (21, 372453), (51, 153363), (63, 124151), (67, 116739), (109, 71757), (119, 65727), (153, 51121), (201, 38913), (327, 23919), (357, 21909), (469, 16677), (603, 12971), (763, 10251), (981, 7973), (1071, 7303), (1139, 6867), (1407, 5559), (1853, 4221), (2289, 3417)]