19779891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{12511}}^1$

素因数の和:12562

約数の個数: 16

約数和(自身を含む): 28827648

約数和(自身を除く): 9047757

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 12511, 37533, 212687, 387841, 638061, 1163523, 6593297, 19779891]

約数ペア:

[(1, 19779891), (3, 6593297), (17, 1163523), (31, 638061), (51, 387841), (93, 212687), (527, 37533), (1581, 12511)]