81268586

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{305521}}^1$

素因数の和:305549

約数の個数: 16

約数和(自身を含む): 146650560

約数和(自身を除く): 65381974

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 305521, 611042, 2138647, 4277294, 5804899, 11609798, 40634293, 81268586]

約数ペア:

[(1, 81268586), (2, 40634293), (7, 11609798), (14, 5804899), (19, 4277294), (38, 2138647), (133, 611042), (266, 305521)]