21542651

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 24467520

約数和(自身を除く): 2924869

約数列:

[1, 13, 23, 109, 299, 661, 1417, 2507, 8593, 15203, 32591, 72049, 197639, 936637, 1657127, 21542651]

約数ペア:

[(1, 21542651), (13, 1657127), (23, 936637), (109, 197639), (299, 72049), (661, 32591), (1417, 15203), (2507, 8593)]