20571661557

素因数分解:

$3^3\times {\mathrm{293}}^1\times {\mathrm{2600387}}^1$

素因数の和:2600689

約数の個数: 16

約数和(自身を含む): 30580562880

約数和(自身を除く): 10008901323

約数列:

[1, 3, 9, 27, 293, 879, 2637, 7911, 2600387, 7801161, 23403483, 70210449, 761913391, 2285740173, 6857220519, 20571661557]

約数ペア:

[(1, 20571661557), (3, 6857220519), (9, 2285740173), (27, 761913391), (293, 70210449), (879, 23403483), (2637, 7801161), (7911, 2600387)]