21211242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271939}}^1$

素因数の和:271957

約数の個数: 16

約数和(自身を含む): 45685920

約数和(自身を除く): 24474678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271939, 543878, 815817, 1631634, 3535207, 7070414, 10605621, 21211242]

約数ペア:

[(1, 21211242), (2, 10605621), (3, 7070414), (6, 3535207), (13, 1631634), (26, 815817), (39, 543878), (78, 271939)]