19979546

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{1459}}^1$

素因数の和:1669

約数の個数: 16

約数和(自身を含む): 30905280

約数和(自身を除く): 10925734

約数列:

[1, 2, 41, 82, 167, 334, 1459, 2918, 6847, 13694, 59819, 119638, 243653, 487306, 9989773, 19979546]

約数ペア:

[(1, 19979546), (2, 9989773), (41, 487306), (82, 243653), (167, 119638), (334, 59819), (1459, 13694), (2918, 6847)]