17720038

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{17827}}^1$

素因数の和:17907

約数の個数: 16

約数和(自身を含む): 30806784

約数和(自身を除く): 13086746

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 17827, 35654, 124789, 249578, 1265717, 2531434, 8860019, 17720038]

約数ペア:

[(1, 17720038), (2, 8860019), (7, 2531434), (14, 1265717), (71, 249578), (142, 124789), (497, 35654), (994, 17827)]