165391919

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2075

約数の個数: 32

約数和(自身を含む): 219856896

約数和(自身を除く): 54464977

約数列:

[1, 7, 11, 23, 47, 77, 161, 253, 329, 517, 1081, 1771, 1987, 3619, 7567, 11891, 13909, 21857, 45701, 83237, 93389, 152999, 319907, 502711, 653723, 1027279, 2147947, 3518977, 7190953, 15035629, 23627417, 165391919]

約数ペア:

[(1, 165391919), (7, 23627417), (11, 15035629), (23, 7190953), (47, 3518977), (77, 2147947), (161, 1027279), (253, 653723), (329, 502711), (517, 319907), (1081, 152999), (1771, 93389), (1987, 83237), (3619, 45701), (7567, 21857), (11891, 13909)]