21539986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{48733}}^1$

素因数の和:48765

約数の個数: 16

約数和(自身を含む): 36842904

約数和(自身を除く): 15302918

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 48733, 97466, 633529, 828461, 1267058, 1656922, 10769993, 21539986]

約数ペア:

[(1, 21539986), (2, 10769993), (13, 1656922), (17, 1267058), (26, 828461), (34, 633529), (221, 97466), (442, 48733)]