21986601

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{80537}}^1$

素因数の和:80560

約数の個数: 16

約数和(自身を含む): 36081024

約数和(自身を除く): 14094423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 80537, 241611, 563759, 1046981, 1691277, 3140943, 7328867, 21986601]

約数ペア:

[(1, 21986601), (3, 7328867), (7, 3140943), (13, 1691277), (21, 1046981), (39, 563759), (91, 241611), (273, 80537)]