311919315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{4651}}^1$

素因数の和:4939

約数の個数: 32

約数和(自身を含む): 530551296

約数和(自身を除く): 218631981

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 263, 789, 1315, 3945, 4471, 4651, 13413, 13953, 22355, 23255, 67065, 69765, 79067, 237201, 395335, 1186005, 1223213, 3669639, 6116065, 18348195, 20794621, 62383863, 103973105, 311919315]

約数ペア:

[(1, 311919315), (3, 103973105), (5, 62383863), (15, 20794621), (17, 18348195), (51, 6116065), (85, 3669639), (255, 1223213), (263, 1186005), (789, 395335), (1315, 237201), (3945, 79067), (4471, 69765), (4651, 67065), (13413, 23255), (13953, 22355)]