20157078789

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{398023}}^1$

素因数の和:398377

約数の個数: 24

約数和(自身を含む): 30921688512

約数和(自身を除く): 10764609723

約数列:

[1, 3, 9, 17, 51, 153, 331, 993, 2979, 5627, 16881, 50643, 398023, 1194069, 3582207, 6766391, 20299173, 60897519, 131745613, 395236839, 1185710517, 2239675421, 6719026263, 20157078789]

約数ペア:

[(1, 20157078789), (3, 6719026263), (9, 2239675421), (17, 1185710517), (51, 395236839), (153, 131745613), (331, 60897519), (993, 20299173), (2979, 6766391), (5627, 3582207), (16881, 1194069), (50643, 398023)]