1389717

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 2562560

約数和(自身を除く): 1172843

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 57, 63, 81, 129, 133, 171, 189, 243, 301, 387, 399, 513, 567, 817, 903, 1161, 1197, 1539, 1701, 2451, 2709, 3483, 3591, 4617, 5719, 7353, 8127, 10449, 10773, 17157, 22059, 24381, 32319, 51471, 66177, 73143, 154413, 198531, 463239, 1389717]

約数ペア:

[(1, 1389717), (3, 463239), (7, 198531), (9, 154413), (19, 73143), (21, 66177), (27, 51471), (43, 32319), (57, 24381), (63, 22059), (81, 17157), (129, 10773), (133, 10449), (171, 8127), (189, 7353), (243, 5719), (301, 4617), (387, 3591), (399, 3483), (513, 2709), (567, 2451), (817, 1701), (903, 1539), (1161, 1197)]