171988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 24

約数和(自身を含む): 331520

約数和(自身を除く): 159532

約数列:

[1, 2, 4, 19, 31, 38, 62, 73, 76, 124, 146, 292, 589, 1178, 1387, 2263, 2356, 2774, 4526, 5548, 9052, 42997, 85994, 171988]

約数ペア:

[(1, 171988), (2, 85994), (4, 42997), (19, 9052), (31, 5548), (38, 4526), (62, 2774), (73, 2356), (76, 2263), (124, 1387), (146, 1178), (292, 589)]