21679131

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{4127}}^1$

素因数の和:4250

約数の個数: 16

約数和(自身を含む): 30910464

約数和(自身を除く): 9231333

約数列:

[1, 3, 17, 51, 103, 309, 1751, 4127, 5253, 12381, 70159, 210477, 425081, 1275243, 7226377, 21679131]

約数ペア:

[(1, 21679131), (3, 7226377), (17, 1275243), (51, 425081), (103, 210477), (309, 70159), (1751, 12381), (4127, 5253)]