16151121

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 28554240

約数和(自身を除く): 12403119

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 131, 133, 171, 309, 393, 399, 721, 917, 927, 1179, 1197, 1957, 2163, 2489, 2751, 5871, 6489, 7467, 8253, 13493, 13699, 17423, 17613, 22401, 40479, 41097, 52269, 94451, 121437, 123291, 156807, 256367, 283353, 769101, 850059, 1794569, 2307303, 5383707, 16151121]

約数ペア:

[(1, 16151121), (3, 5383707), (7, 2307303), (9, 1794569), (19, 850059), (21, 769101), (57, 283353), (63, 256367), (103, 156807), (131, 123291), (133, 121437), (171, 94451), (309, 52269), (393, 41097), (399, 40479), (721, 22401), (917, 17613), (927, 17423), (1179, 13699), (1197, 13493), (1957, 8253), (2163, 7467), (2489, 6489), (2751, 5871)]