7123221

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{739}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 12893760

約数和(自身を除く): 5770539

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 739, 1071, 1377, 2217, 3213, 5173, 6651, 9639, 12563, 15519, 19953, 37689, 46557, 59859, 87941, 113067, 139671, 263823, 339201, 419013, 791469, 1017603, 2374407, 7123221]

約数ペア:

[(1, 7123221), (3, 2374407), (7, 1017603), (9, 791469), (17, 419013), (21, 339201), (27, 263823), (51, 139671), (63, 113067), (81, 87941), (119, 59859), (153, 46557), (189, 37689), (357, 19953), (459, 15519), (567, 12563), (739, 9639), (1071, 6651), (1377, 5173), (2217, 3213)]