128327409

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2543}}^1$

素因数の和:2651

約数の個数: 40

約数和(自身を含む): 221633280

約数和(自身を除く): 93305871

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 567, 623, 801, 1869, 2403, 2543, 5607, 7209, 7629, 16821, 17801, 22887, 50463, 53403, 68661, 160209, 205983, 226327, 480627, 678981, 1441881, 1584289, 2036943, 4752867, 6110829, 14258601, 18332487, 42775803, 128327409]

約数ペア:

[(1, 128327409), (3, 42775803), (7, 18332487), (9, 14258601), (21, 6110829), (27, 4752867), (63, 2036943), (81, 1584289), (89, 1441881), (189, 678981), (267, 480627), (567, 226327), (623, 205983), (801, 160209), (1869, 68661), (2403, 53403), (2543, 50463), (5607, 22887), (7209, 17801), (7629, 16821)]