20798720109

素因数分解:

$3^3\times {\mathrm{571}}^1\times {\mathrm{1349077}}^1$

素因数の和:1349657

約数の個数: 16

約数和(自身を含む): 30866904640

約数和(自身を除く): 10068184531

約数列:

[1, 3, 9, 27, 571, 1713, 5139, 15417, 1349077, 4047231, 12141693, 36425079, 770322967, 2310968901, 6932906703, 20798720109]

約数ペア:

[(1, 20798720109), (3, 6932906703), (9, 2310968901), (27, 770322967), (571, 36425079), (1713, 12141693), (5139, 4047231), (15417, 1349077)]