6639759

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:121

約数の個数: 48

約数和(自身を含む): 12115200

約数和(自身を除く): 5475441

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 57, 63, 129, 133, 171, 189, 301, 387, 399, 513, 817, 903, 1161, 1197, 1849, 2451, 2709, 3591, 5547, 5719, 7353, 8127, 12943, 16641, 17157, 22059, 35131, 38829, 49923, 51471, 105393, 116487, 154413, 245917, 316179, 349461, 737751, 948537, 2213253, 6639759]

約数ペア:

[(1, 6639759), (3, 2213253), (7, 948537), (9, 737751), (19, 349461), (21, 316179), (27, 245917), (43, 154413), (57, 116487), (63, 105393), (129, 51471), (133, 49923), (171, 38829), (189, 35131), (301, 22059), (387, 17157), (399, 16641), (513, 12943), (817, 8127), (903, 7353), (1161, 5719), (1197, 5547), (1849, 3591), (2451, 2709)]