18177777

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 29516256

約数和(自身を除く): 11338479

約数列:

[1, 3, 9, 17, 27, 43, 51, 81, 129, 153, 307, 387, 459, 731, 921, 1161, 1377, 2193, 2763, 3483, 5219, 6579, 8289, 13201, 15657, 19737, 24867, 39603, 46971, 59211, 118809, 140913, 224417, 356427, 422739, 673251, 1069281, 2019753, 6059259, 18177777]

約数ペア:

[(1, 18177777), (3, 6059259), (9, 2019753), (17, 1069281), (27, 673251), (43, 422739), (51, 356427), (81, 224417), (129, 140913), (153, 118809), (307, 59211), (387, 46971), (459, 39603), (731, 24867), (921, 19737), (1161, 15657), (1377, 13201), (2193, 8289), (2763, 6579), (3483, 5219)]