81970378

素因数分解:

$2^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{11503}}^1$

素因数の和:12021

約数の個数: 16

約数和(自身を含む): 140808960

約数和(自身を除く): 58838582

約数列:

[1, 2, 7, 14, 509, 1018, 3563, 7126, 11503, 23006, 80521, 161042, 5855027, 11710054, 40985189, 81970378]

約数ペア:

[(1, 81970378), (2, 40985189), (7, 11710054), (14, 5855027), (509, 161042), (1018, 80521), (3563, 23006), (7126, 11503)]