402388317

素因数分解:

$3^7\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 651801600

約数和(自身を除く): 249413283

約数列:

[1, 3, 9, 17, 27, 51, 79, 81, 137, 153, 237, 243, 411, 459, 711, 729, 1233, 1343, 1377, 2133, 2187, 2329, 3699, 4029, 4131, 6399, 6987, 10823, 11097, 12087, 12393, 19197, 20961, 32469, 33291, 36261, 37179, 57591, 62883, 97407, 99873, 108783, 172773, 183991, 188649, 292221, 299619, 326349, 551973, 565947, 876663, 979047, 1655919, 1697841, 2629989, 2937141, 4967757, 5093523, 7889967, 14903271, 23669901, 44709813, 134129439, 402388317]

約数ペア:

[(1, 402388317), (3, 134129439), (9, 44709813), (17, 23669901), (27, 14903271), (51, 7889967), (79, 5093523), (81, 4967757), (137, 2937141), (153, 2629989), (237, 1697841), (243, 1655919), (411, 979047), (459, 876663), (711, 565947), (729, 551973), (1233, 326349), (1343, 299619), (1377, 292221), (2133, 188649), (2187, 183991), (2329, 172773), (3699, 108783), (4029, 99873), (4131, 97407), (6399, 62883), (6987, 57591), (10823, 37179), (11097, 36261), (12087, 33291), (12393, 32469), (19197, 20961)]