249745923

素因数分解:

$3^6\times 7^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:583

約数の個数: 56

約数和(自身を含む): 432828000

約数和(自身を除く): 183082077

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 243, 327, 449, 567, 729, 763, 981, 1347, 1701, 2289, 2943, 3143, 4041, 5103, 6867, 8829, 9429, 12123, 20601, 26487, 28287, 36369, 48941, 61803, 79461, 84861, 109107, 146823, 185409, 254583, 327321, 342587, 440469, 556227, 763749, 1027761, 1321407, 2291247, 3083283, 3964221, 9249849, 11892663, 27749547, 35677989, 83248641, 249745923]

約数ペア:

[(1, 249745923), (3, 83248641), (7, 35677989), (9, 27749547), (21, 11892663), (27, 9249849), (63, 3964221), (81, 3083283), (109, 2291247), (189, 1321407), (243, 1027761), (327, 763749), (449, 556227), (567, 440469), (729, 342587), (763, 327321), (981, 254583), (1347, 185409), (1701, 146823), (2289, 109107), (2943, 84861), (3143, 79461), (4041, 61803), (5103, 48941), (6867, 36369), (8829, 28287), (9429, 26487), (12123, 20601)]