19702642

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1559}}^1$

素因数の和:1721

約数の個数: 16

約数和(自身を含む): 30326400

約数和(自身を除く): 10623758

約数列:

[1, 2, 71, 89, 142, 178, 1559, 3118, 6319, 12638, 110689, 138751, 221378, 277502, 9851321, 19702642]

約数ペア:

[(1, 19702642), (2, 9851321), (71, 277502), (89, 221378), (142, 138751), (178, 110689), (1559, 12638), (3118, 6319)]