20188911

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{787}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 28594944

約数和(自身を除く): 8406033

約数列:

[1, 3, 17, 51, 503, 787, 1509, 2361, 8551, 13379, 25653, 40137, 395861, 1187583, 6729637, 20188911]

約数ペア:

[(1, 20188911), (3, 6729637), (17, 1187583), (51, 395861), (503, 40137), (787, 25653), (1509, 13379), (2361, 8551)]