31069251

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:167

約数の個数: 56

約数和(自身を含む): 51939360

約数和(自身を除く): 20870109

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 109, 153, 207, 243, 327, 391, 459, 621, 729, 981, 1173, 1377, 1853, 1863, 2507, 2943, 3519, 4131, 5559, 5589, 7521, 8829, 10557, 12393, 16677, 16767, 22563, 26487, 31671, 42619, 50031, 67689, 79461, 95013, 127857, 150093, 203067, 285039, 383571, 450279, 609201, 1150713, 1350837, 1827603, 3452139, 10356417, 31069251]

約数ペア:

[(1, 31069251), (3, 10356417), (9, 3452139), (17, 1827603), (23, 1350837), (27, 1150713), (51, 609201), (69, 450279), (81, 383571), (109, 285039), (153, 203067), (207, 150093), (243, 127857), (327, 95013), (391, 79461), (459, 67689), (621, 50031), (729, 42619), (981, 31671), (1173, 26487), (1377, 22563), (1853, 16767), (1863, 16677), (2507, 12393), (2943, 10557), (3519, 8829), (4131, 7521), (5559, 5589)]