2691981

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 4017600

約数和(自身を除く): 1325619

約数列:

[1, 3, 9, 27, 179, 537, 557, 1611, 1671, 4833, 5013, 15039, 99703, 299109, 897327, 2691981]

約数ペア:

[(1, 2691981), (3, 897327), (9, 299109), (27, 99703), (179, 15039), (537, 5013), (557, 4833), (1611, 1671)]