51771824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{248903}}^1$

素因数の和:248924

約数の個数: 20

約数和(自身を含む): 108024336

約数和(自身を除く): 56252512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 248903, 497806, 995612, 1991224, 3235739, 3982448, 6471478, 12942956, 25885912, 51771824]

約数ペア:

[(1, 51771824), (2, 25885912), (4, 12942956), (8, 6471478), (13, 3982448), (16, 3235739), (26, 1991224), (52, 995612), (104, 497806), (208, 248903)]