21056554535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{11923}}^1$

素因数の和:12287

約数の個数: 32

約数和(自身を含む): 27198167040

約数和(自身を除く): 6141612505

約数列:

[1, 5, 17, 79, 85, 263, 395, 1315, 1343, 4471, 6715, 11923, 20777, 22355, 59615, 103885, 202691, 353209, 941917, 1013455, 1766045, 3135749, 4709585, 15678745, 16012589, 53307733, 80062945, 247724171, 266538665, 1238620855, 4211310907, 21056554535]

約数ペア:

[(1, 21056554535), (5, 4211310907), (17, 1238620855), (79, 266538665), (85, 247724171), (263, 80062945), (395, 53307733), (1315, 16012589), (1343, 15678745), (4471, 4709585), (6715, 3135749), (11923, 1766045), (20777, 1013455), (22355, 941917), (59615, 353209), (103885, 202691)]