19009948321

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{420323}}^1$

素因数の和:420421

約数の個数: 24

約数和(自身を含む): 24150135744

約数和(自身を除く): 5140187423

約数列:

[1, 7, 13, 49, 71, 91, 497, 637, 923, 3479, 6461, 45227, 420323, 2942261, 5464199, 20595827, 29842933, 38249393, 208900531, 267745751, 387958129, 1462303717, 2715706903, 19009948321]

約数ペア:

[(1, 19009948321), (7, 2715706903), (13, 1462303717), (49, 387958129), (71, 267745751), (91, 208900531), (497, 38249393), (637, 29842933), (923, 20595827), (3479, 5464199), (6461, 2942261), (45227, 420323)]