278337243

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{769}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 404490240

約数和(自身を除く): 126152997

約数列:

[1, 3, 17, 47, 51, 141, 151, 453, 769, 799, 2307, 2397, 2567, 7097, 7701, 13073, 21291, 36143, 39219, 108429, 116119, 120649, 348357, 361947, 614431, 1843293, 1974023, 5457593, 5922069, 16372779, 92779081, 278337243]

約数ペア:

[(1, 278337243), (3, 92779081), (17, 16372779), (47, 5922069), (51, 5457593), (141, 1974023), (151, 1843293), (453, 614431), (769, 361947), (799, 348357), (2307, 120649), (2397, 116119), (2567, 108429), (7097, 39219), (7701, 36143), (13073, 21291)]