251248481

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{197}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 291563712

約数和(自身を除く): 40315231

約数列:

[1, 11, 23, 71, 197, 253, 781, 1633, 2167, 4531, 5041, 13987, 17963, 49841, 55451, 115943, 153857, 321701, 993077, 1275373, 3538711, 10923847, 22840771, 251248481]

約数ペア:

[(1, 251248481), (11, 22840771), (23, 10923847), (71, 3538711), (197, 1275373), (253, 993077), (781, 321701), (1633, 153857), (2167, 115943), (4531, 55451), (5041, 49841), (13987, 17963)]