20995983

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21017}}^1$

素因数の和:21063

約数の個数: 16

約数和(自身を含む): 31947360

約数和(自身を除く): 10951377

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21017, 63051, 189153, 567459, 777629, 2332887, 6998661, 20995983]

約数ペア:

[(1, 20995983), (3, 6998661), (9, 2332887), (27, 777629), (37, 567459), (111, 189153), (333, 63051), (999, 21017)]