19905051

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5443}}^1$

素因数の和:5522

約数の個数: 16

約数和(自身を含む): 28221696

約数和(自身を除く): 8316645

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5443, 16329, 125189, 288479, 375567, 865437, 6635017, 19905051]

約数ペア:

[(1, 19905051), (3, 6635017), (23, 865437), (53, 375567), (69, 288479), (159, 125189), (1219, 16329), (3657, 5443)]