20629618

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1313

約数の個数: 16

約数和(自身を含む): 31648320

約数和(自身を除く): 11018702

約数列:

[1, 2, 71, 131, 142, 262, 1109, 2218, 9301, 18602, 78739, 145279, 157478, 290558, 10314809, 20629618]

約数ペア:

[(1, 20629618), (2, 10314809), (71, 290558), (131, 157478), (142, 145279), (262, 78739), (1109, 18602), (2218, 9301)]