20187815039

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1\times {\mathrm{2477}}^1$

素因数の和:2999

約数の個数: 32

約数和(自身を含む): 24492948480

約数和(自身を除く): 4305133441

約数列:

[1, 7, 19, 133, 233, 263, 1631, 1841, 2477, 4427, 4997, 17339, 30989, 34979, 47063, 61279, 329441, 428953, 577141, 651451, 1164301, 4039987, 4560157, 8150107, 10965679, 12377569, 76759753, 86642983, 151788083, 1062516581, 2883973577, 20187815039]

約数ペア:

[(1, 20187815039), (7, 2883973577), (19, 1062516581), (133, 151788083), (233, 86642983), (263, 76759753), (1631, 12377569), (1841, 10965679), (2477, 8150107), (4427, 4560157), (4997, 4039987), (17339, 1164301), (30989, 651451), (34979, 577141), (47063, 428953), (61279, 329441)]