647527689

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:437

約数の個数: 56

約数和(自身を含む): 1017145800

約数和(自身を除く): 369618111

約数列:

[1, 3, 9, 27, 29, 81, 87, 109, 243, 261, 281, 327, 729, 783, 843, 981, 2349, 2529, 2943, 3161, 7047, 7587, 8149, 8829, 9483, 21141, 22761, 24447, 26487, 28449, 30629, 68283, 73341, 79461, 85347, 91887, 204849, 220023, 256041, 275661, 660069, 768123, 826983, 888241, 1980207, 2304369, 2480949, 2664723, 5940621, 7442847, 7994169, 22328541, 23982507, 71947521, 215842563, 647527689]

約数ペア:

[(1, 647527689), (3, 215842563), (9, 71947521), (27, 23982507), (29, 22328541), (81, 7994169), (87, 7442847), (109, 5940621), (243, 2664723), (261, 2480949), (281, 2304369), (327, 1980207), (729, 888241), (783, 826983), (843, 768123), (981, 660069), (2349, 275661), (2529, 256041), (2943, 220023), (3161, 204849), (7047, 91887), (7587, 85347), (8149, 79461), (8829, 73341), (9483, 68283), (21141, 30629), (22761, 28449), (24447, 26487)]