1425321

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 2196480

約数和(自身を除く): 771159

約数列:

[1, 3, 9, 29, 43, 87, 127, 129, 261, 381, 387, 1143, 1247, 3683, 3741, 5461, 11049, 11223, 16383, 33147, 49149, 158369, 475107, 1425321]

約数ペア:

[(1, 1425321), (3, 475107), (9, 158369), (29, 49149), (43, 33147), (87, 16383), (127, 11223), (129, 11049), (261, 5461), (381, 3741), (387, 3683), (1143, 1247)]