199820159

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6637}}^1$

素因数の和:6695

約数の個数: 32

約数和(自身を含む): 275291136

約数和(自身を除く): 75470977

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 1309, 1771, 2737, 4301, 6637, 30107, 46459, 73007, 112829, 152651, 511049, 789803, 1068557, 1241119, 1679161, 2595067, 8687833, 11754127, 18165469, 28545737, 199820159]

約数ペア:

[(1, 199820159), (7, 28545737), (11, 18165469), (17, 11754127), (23, 8687833), (77, 2595067), (119, 1679161), (161, 1241119), (187, 1068557), (253, 789803), (391, 511049), (1309, 152651), (1771, 112829), (2737, 73007), (4301, 46459), (6637, 30107)]