19713159

素因数分解:

$3^3\times {\mathrm{491}}^1\times {\mathrm{1487}}^1$

素因数の和:1987

約数の個数: 16

約数和(自身を含む): 29283840

約数和(自身を除く): 9570681

約数列:

[1, 3, 9, 27, 491, 1473, 1487, 4419, 4461, 13257, 13383, 40149, 730117, 2190351, 6571053, 19713159]

約数ペア:

[(1, 19713159), (3, 6571053), (9, 2190351), (27, 730117), (491, 40149), (1473, 13383), (1487, 13257), (4419, 4461)]