20847609

素因数分解:

$3^2\times {\mathrm{631}}^1\times {\mathrm{3671}}^1$

素因数の和:4308

約数の個数: 12

約数和(自身を含む): 30169152

約数和(自身を除く): 9321543

約数列:

[1, 3, 9, 631, 1893, 3671, 5679, 11013, 33039, 2316401, 6949203, 20847609]

約数ペア:

[(1, 20847609), (3, 6949203), (9, 2316401), (631, 33039), (1893, 11013), (3671, 5679)]