20690586

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 32393574

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 127, 189, 254, 378, 381, 431, 762, 862, 889, 1143, 1293, 1778, 2286, 2586, 2667, 3017, 3429, 3879, 5334, 6034, 6858, 7758, 8001, 9051, 11637, 16002, 18102, 23274, 24003, 27153, 48006, 54306, 54737, 81459, 109474, 162918, 164211, 328422, 383159, 492633, 766318, 985266, 1149477, 1477899, 2298954, 2955798, 3448431, 6896862, 10345293, 20690586]

約数ペア:

[(1, 20690586), (2, 10345293), (3, 6896862), (6, 3448431), (7, 2955798), (9, 2298954), (14, 1477899), (18, 1149477), (21, 985266), (27, 766318), (42, 492633), (54, 383159), (63, 328422), (126, 164211), (127, 162918), (189, 109474), (254, 81459), (378, 54737), (381, 54306), (431, 48006), (762, 27153), (862, 24003), (889, 23274), (1143, 18102), (1293, 16002), (1778, 11637), (2286, 9051), (2586, 8001), (2667, 7758), (3017, 6858), (3429, 6034), (3879, 5334)]