20784712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199853}}^1$

素因数の和:199872

約数の個数: 16

約数和(自身を含む): 41969340

約数和(自身を除く): 21184628

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199853, 399706, 799412, 1598824, 2598089, 5196178, 10392356, 20784712]

約数ペア:

[(1, 20784712), (2, 10392356), (4, 5196178), (8, 2598089), (13, 1598824), (26, 799412), (52, 399706), (104, 199853)]