42781321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{89}}^2\times {\mathrm{491}}^1$

素因数の和:680

約数の個数: 12

約数和(自身を含む): 47296944

約数和(自身を除く): 4515623

約数列:

[1, 11, 89, 491, 979, 5401, 7921, 43699, 87131, 480689, 3889211, 42781321]

約数ペア:

[(1, 42781321), (11, 3889211), (89, 480689), (491, 87131), (979, 43699), (5401, 7921)]