20826747

素因数分解:

$3^3\times {\mathrm{491}}^1\times {\mathrm{1571}}^1$

素因数の和:2071

約数の個数: 16

約数和(自身を含む): 30936960

約数和(自身を除く): 10110213

約数列:

[1, 3, 9, 27, 491, 1473, 1571, 4419, 4713, 13257, 14139, 42417, 771361, 2314083, 6942249, 20826747]

約数ペア:

[(1, 20826747), (3, 6942249), (9, 2314083), (27, 771361), (491, 42417), (1473, 14139), (1571, 13257), (4419, 4713)]