19657490

素因数分解:

$2^1\times 5^1\times {\mathrm{941}}^1\times {\mathrm{2089}}^1$

素因数の和:3037

約数の個数: 16

約数和(自身を含む): 35438040

約数和(自身を除く): 15780550

約数列:

[1, 2, 5, 10, 941, 1882, 2089, 4178, 4705, 9410, 10445, 20890, 1965749, 3931498, 9828745, 19657490]

約数ペア:

[(1, 19657490), (2, 9828745), (5, 3931498), (10, 1965749), (941, 20890), (1882, 10445), (2089, 9410), (4178, 4705)]