20100393

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:283

約数の個数: 40

約数和(自身を含む): 31944000

約数和(自身を除く): 11843607

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 199, 261, 387, 597, 783, 1161, 1247, 1791, 2349, 3483, 3741, 5373, 5771, 8557, 11223, 16119, 17313, 25671, 33669, 51939, 77013, 101007, 155817, 231039, 248153, 467451, 693117, 744459, 2233377, 6700131, 20100393]

約数ペア:

[(1, 20100393), (3, 6700131), (9, 2233377), (27, 744459), (29, 693117), (43, 467451), (81, 248153), (87, 231039), (129, 155817), (199, 101007), (261, 77013), (387, 51939), (597, 33669), (783, 25671), (1161, 17313), (1247, 16119), (1791, 11223), (2349, 8557), (3483, 5771), (3741, 5373)]