398314461

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 576125440

約数和(自身を除く): 177810979

約数列:

[1, 3, 19, 43, 57, 129, 163, 489, 817, 997, 2451, 2991, 3097, 7009, 9291, 18943, 21027, 42871, 56829, 128613, 133171, 162511, 399513, 487533, 814549, 2443647, 3087709, 6987973, 9263127, 20963919, 132771487, 398314461]

約数ペア:

[(1, 398314461), (3, 132771487), (19, 20963919), (43, 9263127), (57, 6987973), (129, 3087709), (163, 2443647), (489, 814549), (817, 487533), (997, 399513), (2451, 162511), (2991, 133171), (3097, 128613), (7009, 56829), (9291, 42871), (18943, 21027)]