11971197

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 21240960

約数和(自身を除く): 9269763

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 137, 171, 219, 399, 411, 511, 657, 959, 1197, 1233, 1387, 1533, 2603, 2877, 4161, 4599, 7809, 8631, 9709, 10001, 12483, 18221, 23427, 29127, 30003, 54663, 70007, 87381, 90009, 163989, 190019, 210021, 570057, 630063, 1330133, 1710171, 3990399, 11971197]

約数ペア:

[(1, 11971197), (3, 3990399), (7, 1710171), (9, 1330133), (19, 630063), (21, 570057), (57, 210021), (63, 190019), (73, 163989), (133, 90009), (137, 87381), (171, 70007), (219, 54663), (399, 30003), (411, 29127), (511, 23427), (657, 18221), (959, 12483), (1197, 10001), (1233, 9709), (1387, 8631), (1533, 7809), (2603, 4599), (2877, 4161)]