42028987

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 57060864

約数和(自身を除く): 15031877

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 347, 847, 1001, 1331, 1573, 2429, 3817, 4511, 9317, 11011, 17303, 26719, 31577, 41987, 49621, 121121, 293909, 347347, 461857, 545831, 3232999, 3820817, 6004141, 42028987]

約数ペア:

[(1, 42028987), (7, 6004141), (11, 3820817), (13, 3232999), (77, 545831), (91, 461857), (121, 347347), (143, 293909), (347, 121121), (847, 49621), (1001, 41987), (1331, 31577), (1573, 26719), (2429, 17303), (3817, 11011), (4511, 9317)]