39721983

素因数分解:

$3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{4139}}^1$

素因数の和:4606

約数の個数: 16

約数和(自身を含む): 60675840

約数和(自身を除く): 20953857

約数列:

[1, 3, 7, 21, 457, 1371, 3199, 4139, 9597, 12417, 28973, 86919, 1891523, 5674569, 13240661, 39721983]

約数ペア:

[(1, 39721983), (3, 13240661), (7, 5674569), (21, 1891523), (457, 86919), (1371, 28973), (3199, 12417), (4139, 9597)]