13203909

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 20060352

約数和(自身を除く): 6856443

約数列:

[1, 3, 9, 23, 69, 207, 227, 281, 681, 843, 2043, 2529, 5221, 6463, 15663, 19389, 46989, 58167, 63787, 191361, 574083, 1467101, 4401303, 13203909]

約数ペア:

[(1, 13203909), (3, 4401303), (9, 1467101), (23, 574083), (69, 191361), (207, 63787), (227, 58167), (281, 46989), (681, 19389), (843, 15663), (2043, 6463), (2529, 5221)]