19957533

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:976

約数の個数: 16

約数和(自身を含む): 27233280

約数和(自身を除く): 7275747

約数列:

[1, 3, 79, 107, 237, 321, 787, 2361, 8453, 25359, 62173, 84209, 186519, 252627, 6652511, 19957533]

約数ペア:

[(1, 19957533), (3, 6652511), (79, 252627), (107, 186519), (237, 84209), (321, 62173), (787, 25359), (2361, 8453)]