20502559

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4513}}^1$

素因数の和:4590

約数の個数: 16

約数和(自身を含む): 26000640

約数和(自身を除く): 5498081

約数列:

[1, 7, 11, 59, 77, 413, 649, 4513, 4543, 31591, 49643, 266267, 347501, 1863869, 2928937, 20502559]

約数ペア:

[(1, 20502559), (7, 2928937), (11, 1863869), (59, 347501), (77, 266267), (413, 49643), (649, 31591), (4513, 4543)]