207978393

素因数分解:

$3^1\times 7^3\times {\mathrm{359}}^1\times {\mathrm{563}}^1$

素因数の和:946

約数の個数: 32

約数和(自身を含む): 324864000

約数和(自身を除く): 116885607

約数列:

[1, 3, 7, 21, 49, 147, 343, 359, 563, 1029, 1077, 1689, 2513, 3941, 7539, 11823, 17591, 27587, 52773, 82761, 123137, 193109, 202117, 369411, 579327, 606351, 1414819, 4244457, 9903733, 29711199, 69326131, 207978393]

約数ペア:

[(1, 207978393), (3, 69326131), (7, 29711199), (21, 9903733), (49, 4244457), (147, 1414819), (343, 606351), (359, 579327), (563, 369411), (1029, 202117), (1077, 193109), (1689, 123137), (2513, 82761), (3941, 52773), (7539, 27587), (11823, 17591)]