21041072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101159}}^1$

素因数の和:101180

約数の個数: 20

約数和(自身を含む): 43903440

約数和(自身を除く): 22862368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101159, 202318, 404636, 809272, 1315067, 1618544, 2630134, 5260268, 10520536, 21041072]

約数ペア:

[(1, 21041072), (2, 10520536), (4, 5260268), (8, 2630134), (13, 1618544), (16, 1315067), (26, 809272), (52, 404636), (104, 202318), (208, 101159)]