21001786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{1237}}^1$

素因数の和:1905

約数の個数: 16

約数和(自身を含む): 34005384

約数和(自身を除く): 13003598

約数列:

[1, 2, 13, 26, 653, 1237, 1306, 2474, 8489, 16081, 16978, 32162, 807761, 1615522, 10500893, 21001786]

約数ペア:

[(1, 21001786), (2, 10500893), (13, 1615522), (26, 807761), (653, 32162), (1237, 16978), (1306, 16081), (2474, 8489)]