16311981

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1231}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 24915968

約数和(自身を除く): 8603987

約数列:

[1, 3, 7, 21, 631, 1231, 1893, 3693, 4417, 8617, 13251, 25851, 776761, 2330283, 5437327, 16311981]

約数ペア:

[(1, 16311981), (3, 5437327), (7, 2330283), (21, 776761), (631, 25851), (1231, 13251), (1893, 8617), (3693, 4417)]