19730494

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10139}}^1$

素因数の和:10287

約数の個数: 16

約数和(自身を含む): 34070400

約数和(自身を除く): 14339906

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10139, 20278, 70973, 141946, 1409321, 2818642, 9865247, 19730494]

約数ペア:

[(1, 19730494), (2, 9865247), (7, 2818642), (14, 1409321), (139, 141946), (278, 70973), (973, 20278), (1946, 10139)]