21568534

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43661}}^1$

素因数の和:43695

約数の個数: 16

約数和(自身を含む): 36676080

約数和(自身を除く): 15107546

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43661, 87322, 567593, 829559, 1135186, 1659118, 10784267, 21568534]

約数ペア:

[(1, 21568534), (2, 10784267), (13, 1659118), (19, 1135186), (26, 829559), (38, 567593), (247, 87322), (494, 43661)]