19729779

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{823}}^1$

素因数の和:1018

約数の個数: 16

約数和(自身を含む): 26974464

約数和(自身を除く): 7244685

約数列:

[1, 3, 61, 131, 183, 393, 823, 2469, 7991, 23973, 50203, 107813, 150609, 323439, 6576593, 19729779]

約数ペア:

[(1, 19729779), (3, 6576593), (61, 323439), (131, 150609), (183, 107813), (393, 50203), (823, 23973), (2469, 7991)]