21539024

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103553}}^1$

素因数の和:103574

約数の個数: 20

約数和(自身を含む): 44942436

約数和(自身を除く): 23403412

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103553, 207106, 414212, 828424, 1346189, 1656848, 2692378, 5384756, 10769512, 21539024]

約数ペア:

[(1, 21539024), (2, 10769512), (4, 5384756), (8, 2692378), (13, 1656848), (16, 1346189), (26, 828424), (52, 414212), (104, 207106), (208, 103553)]