20881569261

素因数分解:

$3^1\times 7^1\times {\mathrm{5507}}^1\times {\mathrm{180563}}^1$

素因数の和:186080

約数の個数: 16

約数和(自身を含む): 31825488384

約数和(自身を除く): 10943919123

約数列:

[1, 3, 7, 21, 5507, 16521, 38549, 115647, 180563, 541689, 1263941, 3791823, 994360441, 2983081323, 6960523087, 20881569261]

約数ペア:

[(1, 20881569261), (3, 6960523087), (7, 2983081323), (21, 994360441), (5507, 3791823), (16521, 1263941), (38549, 541689), (115647, 180563)]