20921241609

素因数分解:

$3^2\times {\mathrm{14783}}^1\times {\mathrm{157247}}^1$

素因数の和:172036

約数の個数: 12

約数和(自身を含む): 30221807616

約数和(自身を除く): 9300566007

約数列:

[1, 3, 9, 14783, 44349, 133047, 157247, 471741, 1415223, 2324582401, 6973747203, 20921241609]

約数ペア:

[(1, 20921241609), (3, 6973747203), (9, 2324582401), (14783, 1415223), (44349, 471741), (133047, 157247)]