28719691

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2207}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 38790144

約数和(自身を除く): 10070453

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 1001, 1183, 1859, 2207, 13013, 15449, 24277, 28691, 169939, 200837, 315601, 372983, 2209207, 2610881, 4102813, 28719691]

約数ペア:

[(1, 28719691), (7, 4102813), (11, 2610881), (13, 2209207), (77, 372983), (91, 315601), (143, 200837), (169, 169939), (1001, 28691), (1183, 24277), (1859, 15449), (2207, 13013)]